KR100760793B1 - 동기 수신기에서의 직교 및 이득 에러의 정정 - Google Patents
동기 수신기에서의 직교 및 이득 에러의 정정 Download PDFInfo
- Publication number
- KR100760793B1 KR100760793B1 KR1020027011238A KR20027011238A KR100760793B1 KR 100760793 B1 KR100760793 B1 KR 100760793B1 KR 1020027011238 A KR1020027011238 A KR 1020027011238A KR 20027011238 A KR20027011238 A KR 20027011238A KR 100760793 B1 KR100760793 B1 KR 100760793B1
- Authority
- KR
- South Korea
- Prior art keywords
- phase
- parameter
- signal
- sample
- quadrature
- 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.)
- Expired - Fee Related
Links
- 238000012937 correction Methods 0.000 title claims description 10
- 230000001360 synchronised effect Effects 0.000 title description 6
- 238000000034 method Methods 0.000 claims description 34
- 238000004891 communication Methods 0.000 claims description 29
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000005070 sampling Methods 0.000 claims description 2
- 238000001914 filtration Methods 0.000 claims 1
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000012549 training Methods 0.000 abstract description 10
- 230000009466 transformation Effects 0.000 abstract 2
- 238000011084 recovery Methods 0.000 description 14
- 238000012360 testing method Methods 0.000 description 7
- 230000014509 gene expression Effects 0.000 description 6
- 238000010295 mobile communication Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 4
- 230000010363 phase shift Effects 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000010267 cellular communication Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012804 iterative process Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000010561 standard procedure Methods 0.000 description 1
- 230000036962 time dependent Effects 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/18—Phase-modulated carrier systems, i.e. using phase-shift keying
- H04L27/22—Demodulator circuits; Receiver circuits
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/10—Means associated with receiver for limiting or suppressing noise or interference
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
- H04B1/06—Receivers
- H04B1/16—Circuits
- H04B1/30—Circuits for homodyne or synchrodyne receivers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L27/00—Modulated-carrier systems
- H04L27/0014—Carrier regulation
- H04L2027/0016—Stabilisation of local oscillators
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Digital Transmission Methods That Use Modulated Carrier Waves (AREA)
- Optical Communication System (AREA)
- Circuits Of Receivers In General (AREA)
Abstract
Description
이러한 송신기/수신기에서의 왜곡에 대한 원인은 위상 편이 수단(106 및 114)에서의 90도 위상 편이로부터의 오프셋 및 혼합기(105 및 107)을 통하는 I 및 Q 경로 사이의 이득 불일치이다.
Claims (11)
- 동위상 및 직교 채널의 샘플을 수신하는 단계(500),샘플의 등화를 위해, 예상되는 샘플과 비교한 샘플에 기초하여 제 1 파라미터(H)를 추정하는 단계(506),추정된 제 1 파라미터(H)에 기초하여, 동위상 및 직교 채널의 샘플을 등화하는 단계(507)를 포함하는, 직접 변환 복조기에서 직교 에러 및 이득 불균형을 정정하는 방법에 있어서,추정된 제 1 파라미터(H)에 기초하여, 정정 신호로의 채널의 결합을 위해 제 2 파라미터를 추정하는 단계(504), 및제 1 파라미터를 추정하는 단계 및 동위상 및 직교 채널의 샘플을 등화하는 단계를 반복하기 이전에, 정정 신호를 사용하여 상기 동위상 및 직교 채널 중 하나의 값을 정정해서 동위상 및 직교 채널의 샘플을 정정함으로써, 직교 에러 및 이득 불균형을 정정하는 단계(507)를 더 포함하는 것을 특징으로 하는 직교 에러 및 이득 불균형을 정정하는 방법.
- 제 1 항 또는 제 2 항에 있어서,결합은 동위상 기저 대역 성분 및 직교 위상 기저 대역 성분의 선형 결합인 것을 특징으로 하는 직교 에러 및 이득 불균형을 정정하는 방법.
- 제 1 항 또는 제 2 항에 있어서,제 1 파라미터를 추정하는 과정 이전에 예상되는 제 1 샘플에 대해 동위상 및 직교 채널의 샘플을 동기화하는 단계(404;504)를 더 포함하는 것을 특징으로 하는 직교 에러 및 이득 불균형을 정정하는 방법.
- 제 1 항 또는 제 2 항에 있어서,통신 채널을 모니터하고, 제 2 샘플의 정정을 위한 제 1 파라미터의 추정이 재-추정될 것을 나타내는 신호를 제공함으로써 기저 대역 성분의 버스트를 수신하는 이벤트를 검출하는 단계(509)를 더 포함하는 것을 특징으로 하는 직교 에러 및 이득 불균형을 정정하는 방법.
- 제 1 항 또는 제 2 항에 있어서,상기 동위상 및 직교 채널의 샘플을 수신하는 상기 단계는,기저 대역 성분(I;Q)을 제공하기 위해 직접 변환 수신기(102;201)에 의해 통신 채널을 통해 송신되는 신호를 다운-변환 및 대역 통과 필터링하는 단계, 및동위상 및 직교 채널의 샘플을 제공하기 위해 기저 대역 성분을 샘플링하는 단계를 포함하는 것을 특징으로 하는 직교 에러 및 이득 불균형을 정정하는 방법.
- 삭제
- 삭제
- 삭제
- 삭제
- 삭제
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP00610026.7 | 2000-02-29 | ||
EP00610026A EP1130866B1 (en) | 2000-02-29 | 2000-02-29 | Correction of quadrature and gain errors in homodyne receivers |
PCT/EP2001/001889 WO2001065791A1 (en) | 2000-02-29 | 2001-02-20 | Correction of quadrature and gain errors in homodyne receives |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030003230A KR20030003230A (ko) | 2003-01-09 |
KR100760793B1 true KR100760793B1 (ko) | 2007-09-20 |
Family
ID=8174375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020027011238A Expired - Fee Related KR100760793B1 (ko) | 2000-02-29 | 2001-02-20 | 동기 수신기에서의 직교 및 이득 에러의 정정 |
Country Status (8)
Country | Link |
---|---|
US (1) | US6859507B2 (ko) |
EP (1) | EP1130866B1 (ko) |
KR (1) | KR100760793B1 (ko) |
AT (1) | ATE249700T1 (ko) |
AU (1) | AU5615801A (ko) |
DE (1) | DE60005131D1 (ko) |
MY (1) | MY127071A (ko) |
WO (1) | WO2001065791A1 (ko) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6961324B2 (en) * | 2001-05-02 | 2005-11-01 | Ipr Licensing, Inc. | System and method for interleaving compressed audio/video (A/V) data frames |
EP1271871A1 (en) * | 2001-06-20 | 2003-01-02 | Motorola, Inc. | Compensation of mismatch between quadrature paths |
US7233629B2 (en) | 2001-06-29 | 2007-06-19 | Nokia Corporation | Adjusting a receiver |
EP1506654A1 (en) * | 2002-05-23 | 2005-02-16 | Interuniversitair Microelektronica Centrum Vzw | Method and device for estimating and compensating iq imbalance |
US7457586B1 (en) * | 2005-03-15 | 2008-11-25 | Rf Micro Devices, Inc. | Method of in-device phase measurement and correlation to programmable factors |
US10145937B2 (en) | 2016-04-01 | 2018-12-04 | Texas Instruments Incorporated | Dynamic IQ mismatch correction in FMCW radar |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999057820A1 (en) * | 1998-05-01 | 1999-11-11 | Arraycomm, Inc. | Method and apparatus for determining spatial signatures for calibrating a communication station having an antenna array |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2639497B1 (fr) * | 1988-11-21 | 1991-02-15 | France Etat | Demodulateur pour transmission numerique comportant un dispositif de correction automatique des defauts |
US5095533A (en) | 1990-03-23 | 1992-03-10 | Rockwell International Corporation | Automatic gain control system for a direct conversion receiver |
DE4236547C2 (de) | 1992-10-29 | 1994-09-29 | Hagenuk Telecom Gmbh | Homodynempfänger und Verfahren zur Korrektur des konvertierten Empfangssignals |
US5710792A (en) * | 1993-12-15 | 1998-01-20 | Ntt Mobile Communications Network, Inc. | Adaptive equalizer |
DE4430679C1 (de) | 1994-08-29 | 1995-12-21 | Dataradio Eng & Consult | Verfahren und Vorrichtung zur Entzerrung von Signalpaaren |
US5604929A (en) | 1995-04-21 | 1997-02-18 | Rockwell International | System for correcting quadrature gain and phase errors in a direct conversion single sideband receiver independent of the character of the modulated signal |
-
2000
- 2000-02-29 DE DE60005131T patent/DE60005131D1/de not_active Expired - Lifetime
- 2000-02-29 EP EP00610026A patent/EP1130866B1/en not_active Expired - Lifetime
- 2000-02-29 AT AT00610026T patent/ATE249700T1/de not_active IP Right Cessation
-
2001
- 2001-02-20 WO PCT/EP2001/001889 patent/WO2001065791A1/en active Application Filing
- 2001-02-20 AU AU56158/01A patent/AU5615801A/en not_active Abandoned
- 2001-02-20 KR KR1020027011238A patent/KR100760793B1/ko not_active Expired - Fee Related
- 2001-02-21 MY MYPI20010753A patent/MY127071A/en unknown
- 2001-02-22 US US09/791,266 patent/US6859507B2/en not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999057820A1 (en) * | 1998-05-01 | 1999-11-11 | Arraycomm, Inc. | Method and apparatus for determining spatial signatures for calibrating a communication station having an antenna array |
Also Published As
Publication number | Publication date |
---|---|
US6859507B2 (en) | 2005-02-22 |
ATE249700T1 (de) | 2003-09-15 |
MY127071A (en) | 2006-11-30 |
AU5615801A (en) | 2001-09-12 |
DE60005131D1 (de) | 2003-10-16 |
US20020009162A1 (en) | 2002-01-24 |
KR20030003230A (ko) | 2003-01-09 |
EP1130866A1 (en) | 2001-09-05 |
EP1130866B1 (en) | 2003-09-10 |
WO2001065791A1 (en) | 2001-09-07 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US5875215A (en) | Carrier synchronizing unit | |
KR100770924B1 (ko) | 무선 통신 시스템에서 주파수 오차 보상 장치 및 방법 | |
US20100183054A1 (en) | Method for the robust synchronization of a multi-carrier receiver using filter banks and corresponding receiver and transceiver | |
JP2006523425A (ja) | 周波数偏移変調受信機の同期方法及び同期システム | |
US5200977A (en) | Terminal unit apparatus for time division multiplexing access communications system | |
KR100845416B1 (ko) | 각각의 ofdm 심볼에서의 대칭적 위상 조정에 의한주파수 정정 | |
KR100760793B1 (ko) | 동기 수신기에서의 직교 및 이득 에러의 정정 | |
US6396884B1 (en) | Automatic frequency control circuit | |
CN108353066B (zh) | 用于载波频率偏移校正的设备和方法及其存储介质 | |
KR100788012B1 (ko) | 스프레드 스펙트럼 통신 시스템에서의 옵셋 보정 | |
JP3698996B2 (ja) | 通信システムにおける受信機 | |
US20060165187A1 (en) | Multiplex signal error correction method and device | |
CN109257311A (zh) | 确定误差矢量幅度的方法及系统 | |
US9106326B2 (en) | Method for determining the imperfections of a transmit pathway and of a receive pathway of an apparatus, and associated radio apparatus | |
EP0851640B1 (en) | Correction of DC and phase offsets in PSK receivers | |
WO1995020848A1 (en) | Digital transmission system | |
JPH07154129A (ja) | Lms方式のアダプティブアレイアンテナ装置 | |
JP2007019985A (ja) | 受信装置 | |
AU2005251078B2 (en) | Receiver and method for wireless communications terminal | |
EP1787446A1 (en) | Frequency error correction by using remodulation | |
US20060171361A1 (en) | Spread spectrum receiver and method for carrier frequency offset compensation in such a spread spectrum receiver | |
JP2003032314A (ja) | 位相誤差補正方法および装置 | |
WO2004075501A1 (en) | Improvements relating to frequency estimation | |
KR100813399B1 (ko) | Zero-if 수신기의 i/q부정합 보상 장치 및 그 방법 | |
JPH11112591A (ja) | 自動周波数制御方式 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PA0105 | International application |
Patent event date: 20020827 Patent event code: PA01051R01D Comment text: International Patent Application |
|
PG1501 | Laying open of application | ||
A201 | Request for examination | ||
PA0201 | Request for examination |
Patent event code: PA02012R01D Patent event date: 20060217 Comment text: Request for Examination of Application |
|
E902 | Notification of reason for refusal | ||
PE0902 | Notice of grounds for rejection |
Comment text: Notification of reason for refusal Patent event date: 20061212 Patent event code: PE09021S01D |
|
E701 | Decision to grant or registration of patent right | ||
PE0701 | Decision of registration |
Patent event code: PE07011S01D Comment text: Decision to Grant Registration Patent event date: 20070831 |
|
GRNT | Written decision to grant | ||
PR0701 | Registration of establishment |
Comment text: Registration of Establishment Patent event date: 20070914 Patent event code: PR07011E01D |
|
PR1002 | Payment of registration fee |
Payment date: 20070914 End annual number: 3 Start annual number: 1 |
|
PG1601 | Publication of registration | ||
PR1001 | Payment of annual fee |
Payment date: 20100830 Start annual number: 4 End annual number: 4 |
|
PR1001 | Payment of annual fee |
Payment date: 20110830 Start annual number: 5 End annual number: 5 |
|
FPAY | Annual fee payment |
Payment date: 20120827 Year of fee payment: 6 |
|
PR1001 | Payment of annual fee |
Payment date: 20120827 Start annual number: 6 End annual number: 6 |
|
FPAY | Annual fee payment |
Payment date: 20130905 Year of fee payment: 7 |
|
PR1001 | Payment of annual fee |
Payment date: 20130905 Start annual number: 7 End annual number: 7 |
|
FPAY | Annual fee payment |
Payment date: 20140904 Year of fee payment: 8 |
|
PR1001 | Payment of annual fee |
Payment date: 20140904 Start annual number: 8 End annual number: 8 |
|
FPAY | Annual fee payment |
Payment date: 20150903 Year of fee payment: 9 |
|
PR1001 | Payment of annual fee |
Payment date: 20150903 Start annual number: 9 End annual number: 9 |
|
LAPS | Lapse due to unpaid annual fee | ||
PC1903 | Unpaid annual fee |
Termination category: Default of registration fee Termination date: 20170705 |