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Global nearest neighbor method-based method and system for merging trace points between beam positions

A nearest neighbor, point trace technology, applied in the field of radar detection, can solve problems such as point trace merging, etc., to achieve the effect of improving the accuracy rate, improving the efficiency of point trace merging, and improving the accuracy rate of point trace merging.

Active Publication Date: 2017-06-13
BEIJING INST OF RADIO MEASUREMENT
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Problems solved by technology

The traditional way of merging traces between waves is to use the position difference between two trace groups between waves to be judged in turn to merge traces. This method will double the processing time with the number of traces when the target is dense. increase, and it is easy to cause false merging of dots

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  • Global nearest neighbor method-based method and system for merging trace points between beam positions
  • Global nearest neighbor method-based method and system for merging trace points between beam positions
  • Global nearest neighbor method-based method and system for merging trace points between beam positions

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Embodiment 1

[0030] Such as figure 1 Shown, a kind of method of the present invention is based on the method for merging point traces between wave positions of global nearest neighbor method, and this method comprises the following steps:

[0031] S1, for the dot traces in the acquired single-wave position, perform a merging process on the dot traces in the wave position, and remove repeated dot traces in the single-wave position;

[0032] Preferably, the obtained single-wave internal traces are processed, and the traces within a certain correlation threshold are combined to remove repeated traces in the echo, so that single-wave reliable points can be obtained Trace, which is beneficial to improve the accuracy of point-trace merging between waves.

[0033] S2. After the merging of traces within wave positions, the merging of traces between wave positions is performed on the two processed adjacent wave positions, and when the merging of traces between wave positions is performed, the two ...

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Abstract

The invention relates to a global nearest neighbor method-based method and system for merging trace points between beam positions. The method comprises the following steps of (S1) carrying out interior trace point merging processing on obtained trace points in single beam positions; (S2) carrying out similarity measurement and calculation on the trace points at two adjacent beam positions to obtain a distribution cost matrix; (S3) carrying out global solution calculation on the distribution cost matrix and judging associated trace point pairs; and (S4) merging the associated trace points into one trace point, adding the trace point to a condensation trace point table and directly adding all trace points except for the associated trace points to the condensation trace point table. The invention further provides a system. The system comprises a single-beam position trace point processing module, a similarity measurement and calculation module, a distribution cost matrix calculation module and a trace point merging processing module. Global nearest neighbor association is carried out on the trace points between the beam positions, so that the trace point merging efficiency of the system can be improved, and meanwhile, the accurate rate of merging the trace points between the beam positions is improved.

Description

technical field [0001] The invention relates to the technical field of radar detection, in particular to a method and system for merging points and traces between wave positions based on the global nearest neighbor method. Background technique [0002] In the radar system, in order to cover the entire scanning space, there will be overlap between the programmed wave positions, resulting in the receiving beams of different wave positions will detect the same target trace, so it is necessary to combine the traces between wave positions to eliminate Redundant dots. The traditional way of merging traces between waves is to use the position difference between two trace groups between waves to be judged in turn to merge traces. This method will double the processing time with the number of traces when the target is dense. increase, and it is easy to cause false merging of dots. Contents of the invention [0003] The technical problem to be solved by the present invention is: i...

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Application Information

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IPC IPC(8): G01S13/58
CPCG01S13/58
Inventor 田永学罗兴旺苏健龙庆华
Owner BEIJING INST OF RADIO MEASUREMENT
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