CN105897351A - Uplink and downlink wave beam shaping measure system and method - Google Patents
Uplink and downlink wave beam shaping measure system and method Download PDFInfo
- Publication number
- CN105897351A CN105897351A CN201410775275.2A CN201410775275A CN105897351A CN 105897351 A CN105897351 A CN 105897351A CN 201410775275 A CN201410775275 A CN 201410775275A CN 105897351 A CN105897351 A CN 105897351A
- Authority
- CN
- China
- Prior art keywords
- signal
- amplitude
- phase
- beam shaping
- uplink
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Variable-Direction Aerials And Aerial Arrays (AREA)
Abstract
The present invention provides an uplink and downlink wave beam shaping measure system and method. The uplink and downlink wave beam shaping measure system and method are able to measure and obtain the transmission matrix of a whole wave beam shaping system based on a software radio technology. The system comprises: a sending terminal of an uplink wave beam shaping system, wherein a sending channel is connected with a calibration channel of a sending channel amplitude consistency calibration network and the receiving channel of the feed source matrix of the uplink wave beam shaping network; the sending channel amplitude consistency calibration network employing an online calibration mode; and a downlink wave beam shaping system receiving terminal, wherein the receive channel is connected with the sending channel of the feed source matrix of the downlink wave beam shaping network. The uplink and downlink wave beam shaping measure system and method are able to ensure the accurate degree of the sending terminal to send multi-path sinusoidal signal amplitude phase information and perform the calibration of sending feed source signals and the test of the receiving feed source signals at the same time so as to improve the test efficiency of the test system and effectively reduce the test workload and the test system complexity.
Description
Technical field
The invention belongs to digital processing field, relate to software and radio technique, be specifically related to based on software wireless method for electrically
Up-downgoing beam shaping special measurement scheme, measures system and method more particularly, to a kind of up-downgoing beam shaping, is used for
Based on software and radio technique, the disposable transfer matrix measuring the complete beamforming system of acquisition.
Background technology
Aerial array is made up of, the diverse location that each array element is positioned in the space substantial amounts of array element (referred to as " array element "),
By certain rule composition array.Compared to element antenna, aerial array can effectively strengthen the directivity of antenna, and improve sky simultaneously
Line gain.The core technology of array antenna is beam shaping (Beam-Forming, hereinafter referred to as BF)
Beam forming technique be by each array element of aerial array arrange can Real-time and Dynamic adjust complex weighting coefficients, pass through
Adjust complex weighting coefficients, adjust current amplitude and the PHASE DISTRIBUTION of aerial array, it is achieved the spirit to each beam position of aerial array
Live and control, and optimize its pattern shapes.
As a example by up (reception) aerial array, uplink beam shaping network the major lobe of directional diagram can be directed at useful signal to,
Directional diagram zero is fallen into alignment interference direction of signal, thus farthest improves the signal interference ratio receiving signal.For descending (transmission)
Aerial array, Inferior obliqued overaction network can form multiple wave beam at different directions, is effectively improved the transmitting merit in appointment region
Rate, increases satellite downlink surplus.From the angle of signal processing, up-downgoing beamforming system is a spatial filter.
In satellite communication system, beamforming system is mainly by aerial array, transmitting-receiving feed passage and digital-to-analogue/analog digital conversion, number
This three part of word signal processor forms.Beam forming technique is by adjusting Digital Signal Processing in real time in up-downgoing shaping network
The feed complex weighting parameter that device generates, it is achieved the up-downgoing wave beam exchange of satellite.Use dynamic connecting matrix, on demand correspondence
The interconnection of up-downgoing wave beam get up, to meet in beam coverage the communication requirement between earth station.
In order to assess the quality of up-downgoing beam shaping, be necessary for measuring up input feed array and descending output feed array it
Between width (spending) phase (position) transitive relation.Traditional up-downgoing beamforming system method of testing relies primarily on universal test and sets
Standby vector network analyzer, i.e. measure the width phase between certain up feed with certain descending feed by vector network analyzer
Relation, wherein, what vector network analyzer was measured is the transfer function of up-downgoing Wave-packet shaping network, and transfer function is in setting
Value in carrier frequency is exactly Amplitude-phase relation to be asked.
During measuring, in addition to a pair up-downgoing feed to be measured, remaining (N × M-2) individual feed must be born by termination matching
Carry.Assuming that up-downgoing array element quantity is N and M respectively, vector network analyzer is used to need altogether to measure N × M width phase
Relation.Measurement process needs frequently to adjust the annexation of cable, and workload is big, and testing efficiency is low.However, if it is desired to more
Changing the carrier frequency of signal in array element, whole test jobs to repeat once.Along with the array element quantity of antenna array system is continuous
Increasing and the lifting of array element signals bandwidth, the width using vector network analyzer to measure up-downgoing beamforming system is distributed more to come mutually
The most difficult, test complexity is more and more higher.
Therefore, it is badly in need of one and really reasonably tests system, it is possible in view of the application background of up-downgoing beamforming system, tool
There are N number of output and M input, N number of input of corresponding tested beamforming system and M output.Test system is by joining
Put the Amplitude-phase relation of N number of output signal, be allowed to the specific incident direction signal with under true environment N number of at uplink beam formation system
The Amplitude-phase relation formed on input feed is consistent, to ensure that beam signal presents default entering relative to uplink receiving aerial array
Firing angle degree.Meanwhile, test equipment receives M output of Inferior obliqued overaction system, and measures between this M output signal
Amplitude-phase relation, compare with the up-downgoing beamforming system width phase Distribution Value that reaches of expection, finally determine beam shaping error.
Summary of the invention
In order to solve problems of the prior art, the present invention proposes a kind of up-downgoing wave beam based on software wireless method for electrically
Shaping measurement scheme, feature is that the transmitting terminal of uplink beam formation system uses field programmable gate array (Field
Programmable Gate Array, hereinafter referred to as FPGA)+digital analog converter (Digtial to Analog Converter,
Hereinafter referred to as DAC) structure, the receiving terminal of on-line calibration and Inferior obliqued overaction system uses FPGA+ simulation numeral to turn
The structure of parallel operation (Analog to Digtal Converter, hereinafter referred to as ADC), uses and up-downgoing beamforming system
The mode that real work situation fits like a glove, only needs one-shot measurement just can accurately record the transfer matrix of complete beamforming system,
There is higher measuring accuracy, effectively reduce test complexity simultaneously.
One aspect of the present invention provides a kind of up-downgoing beam shaping and measures system, is used for based on software and radio technique, one
Secondary property measures the transfer matrix obtaining complete beamforming system.This system includes: the transmitting terminal of uplink beam formation system, sends out
Passage is sent to be simultaneously connected with connecing of the calibrated channel of sendaisle amplitude-phase consistency calibration network and the feed battle array of uplink beam shaping network
Receive passage；Sendaisle amplitude-phase consistency calibration network, uses the pattern of on-line calibration；And the connecing of Inferior obliqued overaction system
Receiving end, receives the sendaisle that passage connects the feed battle array of Inferior obliqued overaction network.
Concrete, the transmitting terminal of uplink beam formation system uses the structure of field programmable gate array+digital analog converter, with
And the receiving terminal of sendaisle amplitude-phase consistency calibration network and Inferior obliqued overaction system all uses field programmable gate array+mould
Intend the structure of digital converter.
Preferably, in the transmitting terminal of uplink beam formation system, field programmable gate array is for just controlling wave beam to be sent
String signal amplitude in its sendaisle, and by direct digital synthesis technique mode, the phase place of wave beam sinusoidal signal is carried out
Adjusting, wherein, wave beam sinusoidal signal produces test and excitation signal after treatment and test and excitation signal is sent to uplink beam
Shaping network.Test and excitation signal is fed into sendaisle amplitude-phase consistency calibration network also by power splitter simultaneously.
It addition, sendaisle amplitude-phase consistency calibration network receives test system sends the upward signal to up beamforming system
And send, by measuring, the sensor gain and phase uncertainties introduced between feed by active device power amplifier, for testing the transmitting terminal of system
Real-time calibration of amplitude and phase is provided.The receiving terminal of Inferior obliqued overaction system is for receiving the descending battle array of downlink wave beam formation system output
Unit's signal also measures its Amplitude-phase relation.
Another aspect of the present invention additionally provides a kind of up-downgoing beam shaping measuring method, and it comprises the following steps: step one,
The incident angle preset relative to uplink receiving aerial array according to beam signal, at the transmitting terminal of uplink beam formation system, adopts
With the signal processing mode of field programmable gate array+digital analog converter, configure beam signal sinusoidal signal in sendaisle
Amplitude-phase relation；Step 2, in sendaisle amplitude-phase consistency calibration network, uses field programmable gate array+simulation numeral
The signal processing mode of transducer, the relative Amplitude-phase relation of measurement sinusoidal signal in calibrated channel, as uplink antenna array
The Amplitude-phase relation of input feed signal；Step 3, at the receiving terminal of Inferior obliqued overaction system, use field programmable gate array+
The signal processing mode of analog-digital converter, receives and measures the Amplitude-phase relation in the sinusoidal signal received in passage, as under
The Amplitude-phase relation of row aerial array output feed signal；And step 4, according to the width phase of uplink antenna array input feed signal
Relation and the Amplitude-phase relation of uplink/downlink antenna array output feed signal, calculate and obtain the transfer function that up-downgoing beam shaping was played,
Thus obtain the transfer matrix of complete beamforming system.
Extraly, the up-downgoing beam shaping measuring method of the present invention also includes: surveyed by sendaisle amplitude-phase consistency calibration network
The relative Amplitude-phase relation of the feed signal obtained, as calibration Amplitude-phase relation, feeds back to the transmitting terminal of uplink beam formation system；With
And the transmitting terminal of uplink beam formation system is to calibrating comparing of the Amplitude-phase relation Amplitude-phase relation with the sinusoidal signal of transmission, and
Amplitude and the phase place of sinusoidal signal in sendaisle is adjusted in real time according to error.
Include in step 2: realized to the data acquisition of the feed signal received and by sampling quantity by analog-digital converter
Digital intermediate frequency signal input field programmable gate array is obtained after change；Digital intermediate frequency signal is carried out orthogonal by field programmable gate array
Down-converted, so that it is guaranteed that the relative phase of the input signal of each calibrated channel in sendaisle amplitude-phase consistency calibration network
Position is not affected by low-converter and is guaranteed the two-way orthogonality of the orthogonal signalling exported；And by root raised cosine coupling filter
Ripple device performs root raised cosine matched filtering to the signal after quadrature frequency conversion processes and processes, thus obtains each feed signal
Amplitude-phase relation relatively.
It addition, can also include in step 2: using power peak signal as reference signal, to root raised cosine matched filtering device
The decision statistics of output carries out relevant accumulative average computation, thus overcomes the additive white Gaussian noise in test process, to obtain
Accurate Amplitude-phase relation relatively.
Therefore, use the present invention, design up-downgoing beam shaping based on software wireless method for electrically and measure system, use transmitting terminal
FPGA+DAC combines the structure of receiving terminal FPGA+ADC, can adjust amplitude and phase place, the amplitude sending feed signal in real time
Can send to DDS in the digital signal bit wide and Digital Up Convert of digital-to-analogue conversion DAC by increasing with the fine setting resolution of phase place
The storage depth of look-up table, bit wide improve, and then guarantee that transmitting terminal sends the levels of precision of multichannel sinusoidal signal width phase information.
Secondly, the testing scheme of the present invention has the function of sendaisle amplitude-phase consistency calibration, compensates and substantially eliminates and is floated by temperature
The sendaisle sensor gain and phase uncertainties introduced with the analog circuit of aging impact.The calibration sending feed signal has no effect on system survey
The normal work of amount, can be carried out with the test receiving feed signal simultaneously, and realizes calibration without sending reference signal, carries
The high testing efficiency of test system.
It addition, the test to up-downgoing beamforming system N × M dimension width phase transfer matrix, it is only necessary to the most just can accurately measure,
And without adjusting external connection line.If needing change to send the carrier frequency of signal in feed, only Digital Signal Processing need to be passed through
Mode, adjust Digital Up Convert DDS medium frequency control word stepping can realize, effectively reduce test job amount and test
System complexity.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the satellite uplink beamforming system according to the specific embodiment of the invention；
Fig. 2 is the system block diagram of the satellite downlink beamforming system according to the specific embodiment of the invention；
Fig. 3 is the system composition schematic diagram of uplink and downlink beam shaping special measurement system involved in the present invention；
Fig. 4 is the digital intermediate frequency signal process chart of the transmitting terminal according to the specific embodiment of the invention；
Fig. 5 is the digital intermediate frequency signal process chart of the receiving terminal according to the specific embodiment of the invention；And
Fig. 6 is the digital intermediate frequency signal process chart of the verification network according to the specific embodiment of the invention.
Detailed description of the invention
The present invention is described in detail for 1-6 and detailed description of the invention below in conjunction with the accompanying drawings.Specifically, Fig. 1 is satellite uplink ripple
The system block diagram of beam shaping system, Fig. 2 is the system block diagram of satellite downlink beamforming system, and Fig. 3 is that uplink and downlink wave beam becomes
The system composition schematic diagram of shape special measurement system, Fig. 4 is the digital intermediate frequency signal process chart of transmitting terminal, and Fig. 5 is for receiving
The digital intermediate frequency signal process chart of end, Fig. 6 is the digital intermediate frequency signal process chart of verification network.
It is made up of as it is shown on figure 3, up-downgoing beam shaping involved in the present invention measures system three modules, i.e. uplink beam
The transmitting terminal of formation system, sendaisle amplitude-phase consistency calibration network and the receiving terminal of Inferior obliqued overaction system.Wherein, on
The sendaisle 1～N of row beamforming system transmitting terminal is simultaneously connected with N number of calibrated channel and the uplink beam forming net of calibration network
N number of reception passage of network feed battle array, the reception passage 1～M of Inferior obliqued overaction system receiving terminal connects Inferior obliqued overaction network
M sendaisle of feed battle array.
As it is shown in figure 1, at the transmitting terminal of uplink beam formation system, use the structure of FPGA+DAC, controlled by FPGA
The wave beam sinusoidal signal processed amplitude in each passage and direct digital frequency synthesis technology (Direct Digital Synthesizer, below
Referred to as DDS) finely tune sinusoidal wave phase place, produce N number of test and excitation, send to up Wave-packet shaping network.Meanwhile, will
Test and excitation signal passes through power splitter feed-in sendaisle amplitude-phase consistency calibration network.
On-line calibration network uses the structure of FPGA+ADC, and receive that test system sends to up beamforming system is N number of
Upward signal, sends, by measuring, the sensor gain and phase uncertainties introduced between feed by active device power amplifier, for test system
Transmitting terminal real-time calibration of amplitude and phase is provided.
As in figure 2 it is shown, the receiving terminal of test system uses the structure of FPGA+ADC, receive the output of Inferior obliqued overaction system
M descending array element signals, and measure its Amplitude-phase relation.
It will be appreciated that the step of uplink and downlink beam shaping special measurement method involved in the present invention is generally:
Step one, the incident angle preset relative to uplink receiving aerial array according to beam signal, use FPGA+DAC's
Signal processing mode, configures beam signal Amplitude-phase relation of sinusoidal signal in N number of sendaisle
{AR, n, θR, n| n=1,2 ..., N}；
Step 2, in calibration network, use the signal processing mode of FPGA+ADC, measure N number of sinusoidal letter in calibrated channel
Number relative Amplitude-phase relation { AC, n, θC, n| n=1,2 ..., N}；
Step 3, the Amplitude-phase relation recorded according to calibration network between transmission feed, feed back to transmitting terminal for adjusting each feed of transmission
The Amplitude-phase relation of signal；
Step 4, test system receiving terminal use FPGA+ADC signal processing mode, receive and measure M reception
Amplitude-phase relation { the A of sinusoidal signal in passageS, m, θS, m| m=1,2 ..., M}；And
Step 5, according to test system alignment network record N number of uplink antenna array input feed signal Amplitude-phase relation
{AC, n, θC, n| n=1,2 ..., N} and receiving terminal record the Amplitude-phase relation of M uplink/downlink antenna array output feed signal
{AS, m, θS, m| m=1,2 ..., M}, tries to achieve the transfer function of up-downgoing Wave-packet shaping network.
It is subsequently assumed that the N-dimensional signal phasor of the input up front of uplink beam formation system is
R (t)=[r1(t), r2(t) ..., rN(t)]T, wherein, rnT () is the complex baseband signal that the n-th up feed receives, n=1,2 ..., N.
The process that uplink beam shapes can be expressed as:
Q (t)=vH·r(t)
Wherein, v is the uplink beam shaping complex weighting coefficients of N × 1 dimension, nth elements vn=| vn|·exp{j·arg(vn) represent
To rnThe amplitude gain of (t) | vn|, phase place rotates arg (vn) radian.
Uplink beam shapes by the input of uplink antenna array is carried out airspace filter, extracts this beam signal, then under carrying out
Row beam shaping.M tie up descending front output signal phasor be s (t), it is represented by:
S (t)=u q (t)
Wherein, u is that Inferior obliqued overaction complex gain vector is tieed up in M × 1.
Therefore, the transfer function matrix of up-downgoing beamforming system is: T=u vH。
Up-downgoing beam shaping based on software wireless method for electrically measure system purpose be through calibration network record input up
Signal phasor r (t) of front and receiving terminal record signal phasor s (t) of descending front output, try to achieve the M × N of beamforming system
The transfer function matrix of dimension:
T=s (t) r-1(t)
It follows that involved in the present invention up-downgoing beam shaping measuring method is discussed in detail with reference to Fig. 4-6, concrete steps are such as
Under:
Step one, the incident angle preset relative to uplink receiving aerial array according to beam signal, use FPGA+DAC's
Signal processing mode, configures beam signal Amplitude-phase relation of sinusoidal signal in N number of sendaisle
{AR, n, θR, n| n=1,2 ..., N}.
As shown in Figure 4, that N number of sendaisle simulation of test system is the N number of of uplink beam formation system receiving antenna array
Feed, each sendaisle is constituted by FPGA digital signal processor+digital to analog converter DAC.
Owing to test system is not that the data with two-forty, without error code are transmitted as purpose, but in order to extract beamforming system
The width phase information of transfer function matrix, therefore transmitting terminal base band generates signal and uses the BPSK modulation of full 0 or complete 1.To base
Band signal uses DDS method to realize Digital Up Convert: the amplitude after the sin/cos ripple sample quantization of a complete cycle believed
Breath is stored in phase look-up table, and in look-up table, each address represents certain sinusoidal wave phase point, stores this phase place corresponding
Quantization amplitude.In DDS, complete phase place table lookup operation by the high order bit of intercepting frequency control word, thus obtain current phase place
Corresponding amplitude, by phase-accumulated operation, DDS output sets the sinusoidal signal of mid frequency.Change DDS phase place to search
In table, initial phase chooses address, it is achieved to the configuration of simple beam sinusoidal signal relative phase in sendaisle.
If the storage data bit width of phase look-up table is 14bit, the degree of depth is 1024, and therefore, in look-up table, phase resolution is
If the relative phase of the sinusoidal signal of N number of sendaisle output is θR, 1, θR, 2... θR, N, then i-th sendaisle intermediate frequency letter is generated
Number phase look-up table search initial address beIf the phase information of each sinusoidal signal is in presetting transmission feedThe phase look-up table initial address then generating first feed passage internal intermediate frequency signal is 0, generates second feedback
The look-up table initial address of source channels signal isGenerate the look-up table initial address of n-th feed channel signal
For
The N number of intermediate-freuqncy signal generated is controlled by power, it is achieved to simple beam sinusoidal signal relative power in many sendaisles
Configuration.If the relative power of the sinusoidal signal of N number of sendaisle output is AR, 1, AR, 2... AR, N, choose the transmission that power is the strongest
Signal is as reference signal, if its amplitude weighting coefficient is 1.To non-reference signal in FPGA, by the side of data shift right
Formula realizes the decay of signal amplitude.If presetting the power information of each sinusoidal signal in transmission feed it is
[AR, 1, AR, 2... AR, N]=[0dB ,-3dB ... ,-9dB], without loss of generality, choose sendaisle 1 as reference channel, the most right
Intermediate-freuqncy signal in second feed output moves to right 1 amplitude fading realizing 3dB, and the intermediate-freuqncy signal of n-th feed output is right
Move 3 amplitude fadings realizing 9dB.Finally, by complete width phase distributed intelligence configuration simple beam sinusoidal signal defeated from DAC
Go out and in each sendaisle of feed-in.
Step 2, in calibration network, use the signal processing mode of FPGA+ADC, measure N number of sinusoidal letter in calibrated channel
Number relative Amplitude-phase relation { AC, n, θC, n| n=1,2 ..., N}.
Owing to the amplitude-phase consistency of sendaisle is affected by simulating radio-frequency devices power amplifier in sendaisle, power is put
Sub-frequency/phase-frequency characteristic the dispersion degree of big device is big, and with environmental factors changes such as temperature.Introduce calibration net the most in a test system
Network, for eliminating the sensor gain and phase uncertainties of sendaisle.As it is shown in figure 5, the output signal of transmitting terminal is by power splitter feed-in school
In the calibrated channel of pseudo-crystalline lattice, calibration network uses analog-digital converter ADC to realize the data acquisition of N number of feed signal, sampling
Digital intermediate frequency signal input FPGA after quantization.N railway digital intermediate-freuqncy signal is done quadrature frequency conversion, it is ensured that each calibration is logical simultaneously
The relative phase of road input signal is not affected by low-converter, and guarantees the orthogonality of output orthogonal signal I/Q two-way.Logarithm
The 2N road signal of word down coversion output does root raised cosine matched filtering.
In order to overcome the additive white Gaussian noise in test system, certainly will need to sentence 2N of the output of root raised cosine matched filtering device
Certainly statistic does cumulative mean respectively.Coherent accumulation averagely refers to do vector superposed to the decision statistics in each information code element cycle,
To improve the precision of orthogonal I/Q two paths of signals.Every pair of orthogonal i/q signal is passed throughSignal amplitude letter is extracted in computing
Breath, extracts signal phase information by arctan (Q/1) computing.Choose power peak signal as reference signal, record each feed
The relative width phase information { A of signalC, n, θC, n| n=1,2 ..., N}.
Step 3, the Amplitude-phase relation recorded according to calibration network between transmission feed, feed back to transmitting terminal for adjusting each feed of transmission
The Amplitude-phase relation of signal.
The relative width phase information of each feed signal recorded by calibration network feeds back to transmitting terminal.Transmitting terminal sends width phase according to comparison
Error between information and calibration width phase information, adjusts amplitude and the phase place of sinusoidal signal in sendaisle in real time.
Step 4, test system receiving terminal use FPGA+ADC signal processing mode, receive and measure M reception
Amplitude-phase relation { the A of sinusoidal signal in passageS, m, θS, m| m=1,2 ..., M}.
As shown in Figure 6, M of M reception channel reception Inferior obliqued overaction system transmission antenna array output of test system
Feed signal, each reception passage is constituted by FPGA digital signal processor+analog-digital converter ADC.It will be appreciated that receive
The Digital Signal Processing flow process of end is consistent with calibration network.
Step 5, record the Amplitude-phase relation of N number of input uplink antenna array feed signal according to test system alignment network
{AC, n, θC, n| n=1,2 ..., N} and receiving terminal record the Amplitude-phase relation of M uplink/downlink antenna array output feed signal
{AS, m, θS, m| m=1,2 ..., M}, tries to achieve the transfer function of up-downgoing Wave-packet shaping network.
The width phase information of signal phasor r (t) of input uplink beam shaping network is recorded by calibration network
{AC, n, θC, n| n=1,2 ..., N} and receiving terminal record the width phase information of signal phasor s (t) of Inferior obliqued overaction network output
{AS, m, θS, m| m=1,2 ..., M}, tries to achieve the transfer function matrix of the M × N-dimensional of beamforming system.
In sum, the uplink and downlink beam shaping special measurement scheme based on software wireless method for electrically that the present invention proposes, compare
In conventional test device vector network analyzer, effectively reduce system complexity and test job amount.Become according to actual beam
The comparing result of the transfer matrix width phase parameter of shape system is it can be seen that the transfer function matrix that the present invention measures can reflect completely
The magnitude-phase characteristics of up-downgoing beamforming system, thus realize relatively low measurement error and reach higher certainty of measurement.
These are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.All essences in the present invention
Within god and principle, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. up-downgoing beam shaping measures a system, and for based on software and radio technique, disposable measurement obtains completed wave
The transfer matrix of beam shaping system, it is characterised in that including:
The transmitting terminal of uplink beam formation system, sendaisle is simultaneously connected with the calibration of sendaisle amplitude-phase consistency calibration network
The reception passage of the feed battle array of passage and uplink beam shaping network；
Described sendaisle amplitude-phase consistency calibration network, uses the pattern of on-line calibration；And
The receiving terminal of Inferior obliqued overaction system, receives the sendaisle that passage connects the feed battle array of Inferior obliqued overaction network.
Up-downgoing beam shaping the most according to claim 1 measures system, it is characterised in that
The transmitting terminal of described uplink beam formation system uses the structure of field programmable gate array+digital analog converter, with
And
The receiving terminal of described sendaisle amplitude-phase consistency calibration network and described Inferior obliqued overaction system all uses the scene can
The structure of programming gate array+analog-digital converter.
Up-downgoing beam shaping the most according to claim 2 measures system, it is characterised in that become at described uplink beam
In the transmitting terminal of shape system,
Described field programmable gate array is used for controlling wave beam sinusoidal signal to be sent amplitude in its sendaisle, and
By direct digital synthesis technique mode, described wave beam sinusoidal signal phase place is adjusted,
Wherein, described wave beam sinusoidal signal produces test and excitation signal after treatment and described test and excitation signal is sent to
Described uplink beam shaping network.
Up-downgoing beam shaping the most according to claim 3 measures system, it is characterised in that become at described uplink beam
In the transmitting terminal of shape system,
Described test and excitation signal is fed into described sendaisle amplitude-phase consistency calibration network also by power splitter simultaneously.
Up-downgoing beam shaping the most according to claim 2 measures system, it is characterised in that described sendaisle width phase
Concordance calibration network receives test system and sends to the upward signal of described uplink beam formation system and send feed by measuring
Between the sensor gain and phase uncertainties that introduced by active device power amplifier, provide real-time width phase for the transmitting terminal of described test system
Calibration.
Up-downgoing beam shaping the most according to claim 2 measures system, it is characterised in that described Inferior obliqued overaction
The receiving terminal of system is for receiving the descending array element signals of described downlink wave beam formation system output and measuring its Amplitude-phase relation.
7. a up-downgoing beam shaping measuring method, for using the up-downgoing wave beam described in any of the above-described claim to become
Shape measures system, based on software and radio technique, the disposable transfer matrix measuring the complete beamforming system of acquisition, its feature
It is, comprises the following steps:
Step one, the incident angle preset relative to uplink receiving aerial array according to beam signal, shape system at uplink beam
The transmitting terminal of system, uses the signal processing mode of field programmable gate array+digital analog converter, configures described wave beam letter
The Amplitude-phase relation of sinusoidal signal number in sendaisle；
Step 2, in sendaisle amplitude-phase consistency calibration network, uses field programmable gate array+Analog-digital Converter
The signal processing mode of device, the relative Amplitude-phase relation of measurement sinusoidal signal in calibrated channel, as uplink antenna array
The Amplitude-phase relation of input feed signal；
Step 3, at the receiving terminal of Inferior obliqued overaction system, uses field programmable gate array+analog-digital converter
Signal processing mode, receives and measures the Amplitude-phase relation in the sinusoidal signal received in passage, defeated as uplink/downlink antenna array
Go out the Amplitude-phase relation of feed signal；And
Step 4, according to Amplitude-phase relation and the output feedback of described uplink/downlink antenna array of described uplink antenna array input feed signal
The Amplitude-phase relation of source signal, calculates and obtains the transfer function that up-downgoing beam shaping was played, thus obtain completed wave beam shaping
The transfer matrix of system.
Up-downgoing beam shaping measuring method the most according to claim 7, it is characterised in that also include:
By the relative Amplitude-phase relation of the feed signal that described sendaisle amplitude-phase consistency calibration network records, as calibration width phase
Relation, feeds back to the transmitting terminal of described uplink beam formation system；And
The transmitting terminal of the described uplink beam formation system Amplitude-phase relation to described calibration Amplitude-phase relation Yu the sinusoidal signal of transmission
Compare, and adjust amplitude and the phase place of sinusoidal signal in described sendaisle in real time according to error.
Up-downgoing beam shaping measuring method the most according to claim 7, it is characterised in that wrap in described step 2
Include:
Realize the data acquisition to the feed signal received by described analog-digital converter and will obtain after sample quantization
Digital intermediate frequency signal inputs described field programmable gate array；
Described field programmable gate array carries out quadrature frequency conversion process to described digital intermediate frequency signal, so that it is guaranteed that described transmission
The relative phase of the input signal of each calibrated channel in passage amplitude-phase consistency calibration network is not by the shadow of low-converter
Ring and guarantee the two-way orthogonality of the orthogonal signalling exported；And
By root raised cosine matched filtering device, the signal after quadrature frequency conversion processes is performed at root raised cosine matched filtering
Reason, thus obtain the relative Amplitude-phase relation of each feed signal.
Up-downgoing beam shaping measuring method the most according to claim 9, it is characterised in that in described step 2
Also include:
Using power peak signal as reference signal, the decision statistics of described root raised cosine matched filtering device output is carried out phase
Dry accumulative average computation, thus overcome the additive white Gaussian noise in test process, to obtain accurate Amplitude-phase relation relatively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775275.2A CN105897351A (en) | 2014-12-15 | 2014-12-15 | Uplink and downlink wave beam shaping measure system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410775275.2A CN105897351A (en) | 2014-12-15 | 2014-12-15 | Uplink and downlink wave beam shaping measure system and method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105897351A true CN105897351A (en) | 2016-08-24 |
Family
ID=56699935
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410775275.2A Pending CN105897351A (en) | 2014-12-15 | 2014-12-15 | Uplink and downlink wave beam shaping measure system and method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105897351A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896981A (en) * | 2018-05-09 | 2018-11-27 | 中国科学院声学研究所 | A kind of acquisition of time-sharing multiplex sonar array data and beam-forming device and system |
| CN109274468A (en) * | 2018-11-23 | 2019-01-25 | 中国电子科技集团公司第三十八研究所 | A kind of test method and system for channel IQ zero offset capability |
| CN111238548A (en) * | 2020-03-05 | 2020-06-05 | 中国科学院长春光学精密机械与物理研究所 | Signal acquisition processing device and method of non-image absolute photoelectric encoder |
| CN111385056A (en) * | 2018-12-27 | 2020-07-07 | 中国电子科技集团公司第十五研究所 | Real-time stream processing method for effective load data |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571534A (en) * | 2003-07-17 | 2005-01-26 | 华为技术有限公司 | An adjusting apparatus and method for send-receive channel of wireless communication system |
| CN102413082A (en) * | 2011-07-29 | 2012-04-11 | 西安空间无线电技术研究所 | Amplitude-phase error calibration method and calibration system for satellite-borne DBF (direct guided wave) transmitting channel |
| CN202748846U (en) * | 2012-06-15 | 2013-02-20 | 深圳市金溢科技有限公司 | DSRC (Dedicated Short Range Communication)-based vehicle positioning device and DSRC application system |
| CN103391123A (en) * | 2013-07-25 | 2013-11-13 | 中国科学院上海微系统与信息技术研究所 | Satellite-borne multi-beam receiving antenna correction system and method |
-
2014
- 2014-12-15 CN CN201410775275.2A patent/CN105897351A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1571534A (en) * | 2003-07-17 | 2005-01-26 | 华为技术有限公司 | An adjusting apparatus and method for send-receive channel of wireless communication system |
| CN102413082A (en) * | 2011-07-29 | 2012-04-11 | 西安空间无线电技术研究所 | Amplitude-phase error calibration method and calibration system for satellite-borne DBF (direct guided wave) transmitting channel |
| CN202748846U (en) * | 2012-06-15 | 2013-02-20 | 深圳市金溢科技有限公司 | DSRC (Dedicated Short Range Communication)-based vehicle positioning device and DSRC application system |
| CN103391123A (en) * | 2013-07-25 | 2013-11-13 | 中国科学院上海微系统与信息技术研究所 | Satellite-borne multi-beam receiving antenna correction system and method |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108896981A (en) * | 2018-05-09 | 2018-11-27 | 中国科学院声学研究所 | A kind of acquisition of time-sharing multiplex sonar array data and beam-forming device and system |
| CN109274468A (en) * | 2018-11-23 | 2019-01-25 | 中国电子科技集团公司第三十八研究所 | A kind of test method and system for channel IQ zero offset capability |
| CN109274468B (en) * | 2018-11-23 | 2021-04-16 | 中国电子科技集团公司第三十八研究所 | Method and system for testing channel IQ automatic correction function |
| CN111385056A (en) * | 2018-12-27 | 2020-07-07 | 中国电子科技集团公司第十五研究所 | Real-time stream processing method for effective load data |
| CN111238548A (en) * | 2020-03-05 | 2020-06-05 | 中国科学院长春光学精密机械与物理研究所 | Signal acquisition processing device and method of non-image absolute photoelectric encoder |
| CN111238548B (en) * | 2020-03-05 | 2021-03-23 | 中国科学院长春光学精密机械与物理研究所 | Signal acquisition processing device and method of non-image absolute photoelectric encoder |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108347268B (en) | System and method for performing multiple-input multiple-output (MIMO) over-the-air test | |
| CN108966264B (en) | System and method for performing over-the-air testing for large-scale multiple-input multiple-output wireless systems | |
| Kutty et al. | Beamforming for millimeter wave communications: An inclusive survey | |
| US10684318B1 (en) | System and method for testing analog beamforming device | |
| US9155097B2 (en) | Methods and arrangements for beam refinement in a wireless network | |
| US9609535B2 (en) | Method and apparatus for testing radio frequency index of active antenna system | |
| CN114531182A (en) | Array antenna calibration method, device and storage medium | |
| CN112564828A (en) | OTA (over the air) test system and method for 5G (the third generation telecommunication) large-scale array antenna test | |
| CN111641464A (en) | Phased array antenna initial amplitude and phase detection method based on array beam scanning | |
| CN105897351A (en) | Uplink and downlink wave beam shaping measure system and method | |
| Pannala | Feasibility and challenges of over-the-air testing for 5G millimeter wave devices | |
| CN111865448B (en) | Phased array antenna testing method and computer readable storage medium | |
| US10009073B2 (en) | System for acquiring channel knowledge and method thereof | |
| CN111953430A (en) | Phased array antenna system level test system and test method | |
| Moayyed et al. | Comparative performance evaluation of mmWave 5G NR and LTE in a campus scenario | |
| CN103248412B (en) | A kind of method of satellite navigation Multibeam synthesis | |
| CN111953429A (en) | Phased array antenna test system and test method | |
| CN111865447A (en) | Phased array antenna test system and test method | |
| CN109921865A (en) | A kind of the calibration bar approximate simulation calibration system and method for full airspace phased array antenna | |
| CN112730998B (en) | Large-scale array antenna OTA test method and system based on near field | |
| US10750373B1 (en) | Determining whether a site supports a supercell base station | |
| Codau et al. | Experimental evaluation of a beamforming-capable system using NI USRP software defined radios | |
| CN110873824A (en) | Massive MIMO antenna test system and method | |
| EP3751306B1 (en) | System and method for testing a radar | |
| Berraki et al. | Practical demonstration of limited feedback beamforming for mmWave systems |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160824 |