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CN115856870B - Phased array radar self-adaptive search matching method with variable data rate - Google Patents

Phased array radar self-adaptive search matching method with variable data rate Download PDF

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Publication number
CN115856870B
CN115856870B CN202310116825.9A CN202310116825A CN115856870B CN 115856870 B CN115856870 B CN 115856870B CN 202310116825 A CN202310116825 A CN 202310116825A CN 115856870 B CN115856870 B CN 115856870B
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wave
tracking
target
search
data rate
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CN115856870A (en
Inventor
蔡凌萍
邹阳
狄儒霄
李洪涛
田巳睿
余其旺
初瑞雪
钱浩楠
邱林康
邢灵尔
黄雪琴
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Nanjing University of Science and Technology
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Nanjing University of Science and Technology
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Abstract

The invention discloses a phased array radar self-adaptive searching and matching method with variable data rate, which comprises the following implementation steps: initializing setting; the phased array radar executes a search task, and after searching a target, prior information of the target is obtained; calculating the number of required tracking wave bits of the targets according to the prior information, judging whether the sum of the required tracking wave bits of all the targets is larger than tracking resources, and updating a TAS target list; according to the list, uniformly arranging the tracking wave positions by using a searching and tracking method; the radar operates in a search-and-trace mode. The invention can realize continuous work without changing the existing wave position arrangement, and allocates new tracking wave positions, thereby saving calculation resources; in addition, a search matching tracking method is used, and the search wave positions guide the arrangement of the tracking wave positions and provide the tracking data rate together with the tracking wave positions, so that the tracking data rate is increased and relatively stable.

Description

Phased array radar self-adaptive search matching method with variable data rate
Technical Field
The invention relates to the technical field of radar data processing, in particular to a phased array radar self-adaptive searching and matching method with variable data rate.
Background
The traditional mechanical scanning phased array system radar generally adopts a Track-While-Scan (TWS) technology, and a Search And Tracking (TAS) technology mainly utilizes the characteristics of rapidness, flexibility And the like of beam scanning of a phased array antenna, and distributes a Search beam And a tracking beam in a time alternating mode, wherein the tracking beam And the Search beam are completely independent. However, the information of the search wave bit is not utilized after providing guidance for distributing the tracking wave bit due to the fact that the information of the search wave bit and the information of the search wave bit are completely independent, so that the tracking data rate is lost to a certain extent; in addition, the conventional tracking wave position arrangement is only mechanically and evenly dispersed, and is not adjusted according to the specific position of the target, so that the tracking data rate can have large fluctuation. The new technical approach should avoid both of the above drawbacks as much as possible.
Disclosure of Invention
The invention aims to provide a phased array radar self-adaptive searching and matching method with variable data rate.
The solution for achieving the purpose of the invention is as follows: a variable data rate phased array radar adaptive search and tracking method, the method comprising:
step 1: initializing, arranging all wave bits in columns, uniformly covering a target airspace, wherein the wave bits are
Figure SMS_1
Tracking wave number is->
Figure SMS_2
The search wave number is->
Figure SMS_3
Wherein->
Figure SMS_4
，/>
Figure SMS_5
，/>
Figure SMS_6
Are all integers and are added with>
Figure SMS_7
；
Step 2: the radar works in a searching mode, whether a target is searched or not is judged, if so, the step 3 is executed, and otherwise, the step 2 is executed again;
step 3: after finding the target, obtaining the prior information of the target, includingLocation of target
Figure SMS_8
Speed information->
Figure SMS_9
And the number of the wave position of the searched target +.>
Figure SMS_10
；
Step 4: according to the target priori information obtained in the step 3, a speed distance threat degree formula is utilized
Figure SMS_43
Calculating to obtain target threat degree->
Figure SMS_44
Judging the target threat level according to the threat level>
Figure SMS_46
According to threat level->
Figure SMS_14
The number of tracking wave bits required for finding the target is +.>
Figure SMS_22
Wherein->
Figure SMS_30
Is an integer>
Figure SMS_38
, />
Figure SMS_33
, />
Figure SMS_41
Is a constant; threat degree calculated by speed distance threat degree formula +.>
Figure SMS_31
In the range of [0, ] and ]>
Figure SMS_39
]Wherein z is a constant, one fifth of this interval is a grade, [0, ], and ]>
Figure SMS_32
]、(/>
Figure SMS_40
, />
Figure SMS_42
]、(/>
Figure SMS_45
,/>
Figure SMS_16
]、(/>
Figure SMS_23
, />
Figure SMS_28
]、(/>
Figure SMS_36
,/>
Figure SMS_11
]Threat level->
Figure SMS_19
、/>
Figure SMS_27
、/>
Figure SMS_35
、
Figure SMS_29
、/>
Figure SMS_37
The number of the tracking wave bits needed by the target corresponding to the threat level is +.>
Figure SMS_13
、/>
Figure SMS_21
、/>
Figure SMS_17
、/>
Figure SMS_24
、/>
Figure SMS_26
The method comprises the steps of carrying out a first treatment on the surface of the Wherein->
Figure SMS_34
Threat level is highest, other threat levels +.>
Figure SMS_12
The method comprises the steps of carrying out a first treatment on the surface of the There is->
Figure SMS_20
And are all normal integers; when the threat level of the target is +.>
Figure SMS_15
When it is, the required tracking wave number is +.>
Figure SMS_25
There is +.>
Figure SMS_18
。
Step 5: judging
Figure SMS_47
Whether it is true, i.e. whether the sum of the number of trace bits required by all targets existing is greater than the trace resource, wherein +.>
Figure SMS_48
The tracking wave number is allocated to the wave number already; if so, go to step 6, otherwise let +.>
Figure SMS_49
I.e. adding the tracking wave number needed by the target into the allocated tracking wave number, andexecuting the step 7;
step 6: sorting the targets according to the threat degree level calculated in the step 4 from high to low, arranging the targets into a target list, deleting the target with the lowest threat level until the sum of the required tracking wave numbers of all the targets in the list is less than or equal to
Figure SMS_50
Completing the update of the target list and letting +.>
Figure SMS_51
Equal to +.>
Figure SMS_52
And (3) summing; in particular, the new object is re-threat level +.>
Figure SMS_53
Sequencing from high to low; after completion, the sum of the required tracking numbers of all the targets existing in the list is added, and it is determined whether the sum is greater than +.>
Figure SMS_54
If so, removing the target with the lowest threat level, repeating the operation until the sum of the number of the tracking wave bits is less than or equal to +.>
Figure SMS_55
。
Step 7: sequentially using a search matching tracking method for the list targets in the step 6: according to the wave position number of the searched target
Figure SMS_60
Arranging tracking wave positions by using an equidistant wave position arrangement method; after searching the target, calculating to obtain the number interval
Figure SMS_57
The method comprises the steps of carrying out a first treatment on the surface of the To search the wave position of the target +.>
Figure SMS_65
For reference, forward count->
Figure SMS_61
The number of the wave bit is selected by the wave bit +.>
Figure SMS_67
Inserting a tracking wave position, and counting forwards after completion>
Figure SMS_63
Inserting a tracking wave bit into the wave bit number, and so on until the wave bit number is not full of the forward counting wave bit number +.>
Figure SMS_69
A plurality of; and then count backwards->
Figure SMS_58
The number of the wave bit is selected by the wave bit +.>
Figure SMS_68
Inserting a tracking wave position, and counting backwards after completion>
Figure SMS_56
Inserting a tracking wave bit into the wave bit number, and so on until the backward wave bit number is not full +.>
Figure SMS_66
And each. Finally, the insertion tracking wave position is selected to be … …%>
Figure SMS_62
,
Figure SMS_70
, />
Figure SMS_64
, />
Figure SMS_71
… …. Search wave position->
Figure SMS_59
Providing the target with the arranged tracking wave positionsIs provided.
Step 8: after the search matching tracking method is used, the radar works in a tracking and searching mode, and step 3 is executed after the working period is finished every time the radar searches an airspace once.
Compared with the prior art, the invention has the remarkable advantages that: 1) The invention can realize continuous work without changing the existing wave position arrangement, thereby saving calculation resources; 2) The invention uses a search co-tracking method, the search wave position guides the arrangement of the tracking wave position and provides the tracking data rate together with the tracking wave position, so that the tracking data rate is increased and relatively stable.
Drawings
FIG. 1 is a flow chart of the adaptive search matching technique of the variable data rate phased array radar of the present invention.
FIG. 2 is a schematic diagram of a method for selecting tracking wave positions by the search matching technique.
FIG. 3 shows a search bin for a target in an embodiment.
Fig. 4 shows all tracking bits of a target in an embodiment.
Description of the embodiments
The invention is further described below with reference to the drawings.
The invention discloses a variable data rate phased array radar self-adaptive search matching method, which is shown in fig. 1, and comprises the following steps:
step 1: initializing, arranging all wave bits in columns, uniformly covering a target airspace, wherein the wave bits are
Figure SMS_72
Tracking wave number is->
Figure SMS_73
The search wave number is->
Figure SMS_74
Wherein->
Figure SMS_75
，/>
Figure SMS_76
，/>
Figure SMS_77
Are all integers and are added with>
Figure SMS_78
；
Step 2: the radar works in a searching mode, whether a target is searched or not is judged, if so, the step 3 is executed, and otherwise, the step 2 is executed again;
step 3: after finding the target, obtaining prior information of the target, including the position of the target
Figure SMS_79
Speed information->
Figure SMS_80
And the number of the wave position of the searched target +.>
Figure SMS_81
；
Step 4: according to the target priori information obtained in the step 3, a speed distance threat degree formula is utilized
Figure SMS_114
Calculating to obtain target threat degree->
Figure SMS_115
Judging the target threat level according to the threat level>
Figure SMS_117
According to threat level->
Figure SMS_85
The number of tracking wave bits required for finding the target is +.>
Figure SMS_94
Wherein->
Figure SMS_102
Is an integer>
Figure SMS_110
, />
Figure SMS_101
, />
Figure SMS_109
Is a constant; threat degree calculated by speed distance threat degree formula +.>
Figure SMS_87
In the range of [0, ] and ]>
Figure SMS_93
]Wherein z is a constant, one fifth of this interval is a grade, [0, ], and ]>
Figure SMS_99
]、(/>
Figure SMS_107
, />
Figure SMS_108
]、(/>
Figure SMS_116
,/>
Figure SMS_89
]、(/>
Figure SMS_95
, />
Figure SMS_103
]、(/>
Figure SMS_111
,/>
Figure SMS_82
]Threat level->
Figure SMS_97
、/>
Figure SMS_105
、/>
Figure SMS_113
、
Figure SMS_98
、/>
Figure SMS_106
The number of the tracking wave bits needed by the target corresponding to the threat level is +.>
Figure SMS_83
、/>
Figure SMS_90
、/>
Figure SMS_88
、/>
Figure SMS_96
、/>
Figure SMS_104
The method comprises the steps of carrying out a first treatment on the surface of the Wherein->
Figure SMS_112
Threat level is highest, other threat levels +.>
Figure SMS_92
The method comprises the steps of carrying out a first treatment on the surface of the There is->
Figure SMS_100
And are all normal integers; when the threat level of the target is +.>
Figure SMS_84
When it is, the required tracking wave number is +.>
Figure SMS_91
There is +.>
Figure SMS_86
。
Step 5: judging
Figure SMS_118
Whether it is true, i.e. whether the sum of the number of trace bits required by all targets existing is greater than the trace resource, wherein +.>
Figure SMS_119
The tracking wave number is allocated to the wave number already; if so, go to step 6, otherwise let +.>
Figure SMS_120
Adding the tracking wave number needed by the target into the allocated tracking wave number, and executing the step 7;
step 6: sorting the targets according to the threat degree level calculated in the step 4 from high to low, arranging the targets into a target list, deleting the target with the lowest threat level until the sum of the required tracking wave numbers of all the targets in the list is less than or equal to
Figure SMS_121
Completing the update of the target list and letting +.>
Figure SMS_122
Equal to +.>
Figure SMS_123
And (3) summing; in particular, the new object is re-threat level +.>
Figure SMS_124
Sequencing from high to low; after completion, the sum of the required tracking numbers of all the targets existing in the list is added, and it is determined whether the sum is greater than +.>
Figure SMS_125
If so, removing the target with the lowest threat level, repeating the operation until the sum of the number of the tracking wave bits is less than or equal to +.>
Figure SMS_126
。
Step 7: sequentially using a search matching tracking method for the list targets in the step 6: according to the wave position number T of the searched target, arranging tracking wave positions by using an equidistant wave position arrangement method;
searching and matching tracking method, and searching wave position number of target in prior information
Figure SMS_127
As a reference, an equidistant wave position arrangement method is used when the tracking wave positions are arranged; equidistant wave bit arrangement method, and the tracking wave bit interval is calculated as
Figure SMS_128
Search for the bin number +.>
Figure SMS_129
Front and rear>
Figure SMS_130
And a number, selecting a wave position to insert the tracking wave position.
In summary, the tracking wave position number can be expressed as
Figure SMS_146
Wherein->
Figure SMS_136
Is a non-zero integer. As shown in FIG. 2, it is assumed that there is a search bin +.>
Figure SMS_147
～/>
Figure SMS_134
The method comprises the steps of carrying out a first treatment on the surface of the Has a target number of 1, and the wave position number of the searched target 1 is +.>
Figure SMS_141
And determining a required interval +.>
Figure SMS_138
=8 bin numbers. By->
Figure SMS_144
Starting to count 8 wave positions, which is +.>
Figure SMS_137
Inserting a tracking wave position, counting 8 wave positions forwards, and obtaining the value +.>
Figure SMS_145
Inserting another tracking wave position, repeating the operation until the boundary; by->
Figure SMS_131
Starting to count 8 wave positions backward, which is +.>
Figure SMS_139
Inserting a tracking wave position, and counting 8 wave positions backwards to obtain
Figure SMS_135
Another tracking wave bit is inserted and the operation is repeated until the boundary. In summary, the tracking wave position of the target 1 is … …,
Figure SMS_143
、/>
Figure SMS_132
、/>
Figure SMS_140
、/>
Figure SMS_133
… …. By->
Figure SMS_142
The intervals of the determined tracking wave positions are the same as the search wave position +.>
Figure SMS_148
Together providing the tracking data rate of target 1.
Step 8: after the search matching tracking method is used, the radar works in a tracking and searching mode, and step 3 is executed after the working period is finished every time the radar searches an airspace once.
The invention is further described below with reference to examples.
Releasing 14 targets, setting the following parameters:
tracking the number of wave bits to be
Figure SMS_149
=20, search number of waves +.>
Figure SMS_153
=40; the distance range of the target is [300,2000 ]]Speed range of [5, 40]The method comprises the steps of carrying out a first treatment on the surface of the The empirical parameter of the speed distance threat degree formula is +.>
Figure SMS_156
=-0.02, />
Figure SMS_151
=1.9, />
Figure SMS_154
=30, now->
Figure SMS_157
The value range of (2) is [0,100 ]], />
Figure SMS_158
～/>
Figure SMS_150
Corresponding to a range of [0,20 ]]、[20,40]、[40,60]、[60,80]、[80,100]，/>
Figure SMS_152
～/>
Figure SMS_155
Respectively 2,4,5,6,7.
Step 1: initializing, namely arranging all wave positions in columns, uniformly covering a target airspace, and obtaining information: tracking the number of wave bits to be
Figure SMS_159
=20, search number of waves +.>
Figure SMS_160
=40; parameter information is obtained.
Step 2: the radar works in a searching mode, and whether a target is searched or not is judged;
searching for new targets 3, 5, 7, 11;
step 3: after finding the target, obtaining prior information of the target, including the position of the target
Figure SMS_161
Speed information->
Figure SMS_162
And the number of the wave position of the searched target +.>
Figure SMS_163
；
The information of the new target is searched, wherein the information comprises speed position information and the wave position of the searched target is as the following table:
Figure SMS_164
step 4: according to prior information, passing through a speed distance threat degree formula
Figure SMS_165
Calculating threat degree->
Figure SMS_166
Judging the target threat level according to the threat level>
Figure SMS_167
Judging the number of tracking waves needed by the target according to the threat level +.>
Figure SMS_168
；
Figure SMS_169
Step 5: judging
Figure SMS_170
Whether it is true, i.e. whether the sum of the number of trace bits required by all targets existing is greater than the trace resource, wherein +.>
Figure SMS_171
The tracking wave number is allocated to the wave number already; if so, go to step 6, otherwise let +.>
Figure SMS_172
Adding the tracking wave number needed by the target into the allocated tracking wave number, and executing the step 7;
target list at this time:
Figure SMS_173
，/>
Figure SMS_174
，/>
Figure SMS_175
step 7 is performed;
Figure SMS_176
step 6: sorting the targets according to the threat degree level calculated in the step 4 from high to low, arranging the targets into a target list, deleting the target with the lowest threat level until the sum of the required tracking wave numbers of all the targets in the list is less than or equal to
Figure SMS_177
Completing updating of the target list; finally let->
Figure SMS_178
Equal to +.>
Figure SMS_179
And (3) summing.
Inserting the new target rank into the table:
Figure SMS_180
deleting the targets with low threat level until the sum of the required tracking wave numbers of all targets in the list is less than or equal to
Figure SMS_181
；
After the list is updated:
Figure SMS_182
Figure SMS_183
step 7: the search matching tracking method is sequentially used for targets 1, 7, 4 and 5: according to the wave position number of the searched target, arranging tracking wave positions by using an equidistant wave position arrangement method;
specifically, for example, target 5:
utilizing a searching and tracking method, and searching the wave position number of the target according to the prior information
Figure SMS_184
As in fig. 3; calculating to obtain the tracking wave bit interval of +.>
Figure SMS_185
；
To uniformly select 4 tracking wave bits in 40 wave bits, determining the required interval between each tracking wave bit
Figure SMS_189
And the number of the wave bits. By->
Figure SMS_191
Starting to count 8 wave positions, which is +.>
Figure SMS_194
Inserting a tracking wave position, counting 8 wave positions forwards, and obtaining the value +.>
Figure SMS_186
Inserting another tracking wave position; by->
Figure SMS_190
Starting to count 8 wave positions backward, which is +.>
Figure SMS_193
Inserting a tracking wave position, and counting 8 wave positions backwards to obtain +.>
Figure SMS_196
Another tracking wave position is inserted as in fig. 4. In summary, the tracking wave position of target 1 is +.>
Figure SMS_188
、/>
Figure SMS_192
、/>
Figure SMS_195
、/>
Figure SMS_197
In combination with search wave position->
Figure SMS_187
A total of 5 wave bits contribute to the tracking data rate.
Step 8: after the search matching tracking method is used, the radar works in a tracking and searching mode, and step 3 is executed after the working period is finished every time the radar searches an airspace once.
In the embodiment, the radar tracks multiple targets, more tracking resources are allocated for high-threat targets, tracking of extremely low-threat targets is abandoned, the requirements of arranging tracking wave positions according to the search wave positions are met, the search wave positions help provide tracking data rate, and the data rate is improved.

Claims (5)

1. A variable data rate phased array radar adaptive search and matching method, the method comprising:
step 1: initializing, arranging all wave bits in columns, uniformly covering a target airspace, wherein the wave bits are
Figure QLYQS_1
Tracking wave number is->
Figure QLYQS_2
The search wave number is->
Figure QLYQS_3
Wherein->
Figure QLYQS_4
，/>
Figure QLYQS_5
，/>
Figure QLYQS_6
Are all integers and are added with>
Figure QLYQS_7
；
Step 2: the radar works in a searching mode, whether a target is searched or not is judged, if so, the step 3 is executed, and otherwise, the step 2 is executed again;
step 3: after finding the target, obtaining prior information of the target, including the distance of the target
Figure QLYQS_8
Speed information->
Figure QLYQS_9
And the number of the wave position of the searched target +.>
Figure QLYQS_10
；
Step 4: according to the target priori information obtained in the step 3, a speed distance threat degree formula is utilized
Figure QLYQS_12
Calculating to obtain target threat degree->
Figure QLYQS_14
Judging the target threat level according to the threat level>
Figure QLYQS_17
According to threat level->
Figure QLYQS_13
The number of tracking wave bits required for finding the target is +.>
Figure QLYQS_15
Wherein->
Figure QLYQS_18
Is an integer>
Figure QLYQS_19
, />
Figure QLYQS_11
, />
Figure QLYQS_16
Is a constant;
step 5: judging
Figure QLYQS_20
Whether it is true, i.e. whether the sum of the number of trace bits required by all targets existing is greater than the trace resource, wherein +.>
Figure QLYQS_21
The tracking wave number is allocated to the wave number already; if so, go to step 6, otherwise let +.>
Figure QLYQS_22
Adding the tracking wave number needed by the target into the allocated tracking wave number, and executing the step 7;
step 6: sorting the targets according to the threat degree level calculated in the step 4 from high to low, arranging the targets into a target list, deleting the target with the lowest threat level until the sum of the required tracking wave numbers of all the targets in the list is less than or equal to
Figure QLYQS_23
I.e. complete the update of the target list and let +.>
Figure QLYQS_24
Equal to +.>
Figure QLYQS_25
And (3) summing;
step 7: sequentially using a search matching tracking method for the list targets in the step 6: according to the wave position number of the searched target
Figure QLYQS_26
Arranging tracking wave positions by using an equidistant wave position arrangement method; equidistant wave bit arrangement method for calculating tracking wave bit number interval as
Figure QLYQS_27
Search for the bin number +.>
Figure QLYQS_28
Front and rear>
Figure QLYQS_29
A number, selecting a wave position to insert a tracking wave position; the tracking wave bit number is denoted +.>
Figure QLYQS_30
Wherein->
Figure QLYQS_31
Is a non-zero integer;
step 8: after the search matching tracking method is used, the radar works in a tracking and searching mode, and step 3 is executed after the working period is finished every time the radar searches an airspace once.
2. The variable data rate phased array radar adaptive search and matching method of claim 1, wherein the target threat level is determined in step 4
Figure QLYQS_32
The number of tracking wave bits required for searching the target +.>
Figure QLYQS_33
Specifically comprises the following steps:
threat level calculated from speed distance threat level formula
Figure QLYQS_36
In the range of [0, ] and ]>
Figure QLYQS_42
]Wherein z is a constant, one fifth of this interval is a grade, [0, ], and ]>
Figure QLYQS_49
]、(/>
Figure QLYQS_35
, />
Figure QLYQS_41
]、(/>
Figure QLYQS_48
,/>
Figure QLYQS_55
]、(/>
Figure QLYQS_39
, />
Figure QLYQS_43
]、(/>
Figure QLYQS_50
,/>
Figure QLYQS_56
]Threat level->
Figure QLYQS_40
、/>
Figure QLYQS_46
、/>
Figure QLYQS_53
、/>
Figure QLYQS_58
、/>
Figure QLYQS_37
The number of the tracking wave bits needed by the target corresponding to the threat level is +.>
Figure QLYQS_47
、/>
Figure QLYQS_54
、/>
Figure QLYQS_60
、/>
Figure QLYQS_34
、/>
Figure QLYQS_45
The method comprises the steps of carrying out a first treatment on the surface of the Wherein->
Figure QLYQS_52
Threat level is highest, other threat levels +.>
Figure QLYQS_59
The method comprises the steps of carrying out a first treatment on the surface of the In addition, there are
Figure QLYQS_38
And are all normal integers; when the threat level of the target is +.>
Figure QLYQS_44
When the required tracking wave number is
Figure QLYQS_51
There is +.>
Figure QLYQS_57
。
3. The adaptive search and matching method for a variable data rate phased array radar according to claim 1, wherein the updating method for the target list in step 6 specifically comprises:
re-ranking new targets with targets in the target list
Figure QLYQS_61
Sequencing from high to low; after completion, the sum of the required tracking numbers of all the targets existing in the list is added, and it is determined whether the sum is greater than +.>
Figure QLYQS_62
If so, removing the target with the lowest threat level, repeating the operation until the sum of the number of the tracking wave bits is less than or equal to +.>
Figure QLYQS_63
。
4. The variable data rate phased array radar adaptive matching method of claim 1, wherein the searching matching tracking method in step 7 specifically comprises:
searching and matching tracking method, and searching wave position number of target in prior information
Figure QLYQS_64
As a reference, an equidistant wave position arrangement method is used when the tracking wave positions are arranged; while the wave bits together with the tracking wave bits provide a tracking data rate.
5. The adaptive search and matching method for a variable data rate phased array radar of claim 4, wherein the specific implementation steps of step 7 are as follows: after searching the target, calculating to obtain the number interval
Figure QLYQS_67
The method comprises the steps of carrying out a first treatment on the surface of the To search the wave position of the target
Figure QLYQS_72
For reference, forward count->
Figure QLYQS_76
The number of the wave bit is selected by the wave bit +.>
Figure QLYQS_68
Inserting a tracking wave position, and counting forwards after completion
Figure QLYQS_71
Inserting a tracking wave bit into the wave bit number, and so on until the wave bit number is not full of the forward counting wave bit number +.>
Figure QLYQS_75
A plurality of; and then count backwards->
Figure QLYQS_78
The number of the wave bit is selected by the wave bit +.>
Figure QLYQS_65
Inserting a tracking wave position, and counting backwards after completion>
Figure QLYQS_69
A tracking bin is inserted into the bin number,push in this way until the backward counting position number is not full +.>
Figure QLYQS_73
A plurality of; the final tracking bin number is … …,
Figure QLYQS_77
, />
Figure QLYQS_66
, />
Figure QLYQS_70
, />
Figure QLYQS_74
,……。
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