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Optimization method for target point aggregation processing in radar system

An optimization method, radar system technology, applied in electrical digital data processing, radio wave measurement system, resource allocation, etc., can solve the problems of radar system performance degradation, increased processing time consumption, and inability to meet real-time performance, etc., to achieve real-time performance , the effect of reducing time complexity

Active Publication Date: 2021-06-25
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the points that need to be aggregated increase a lot, the solution cannot meet the real-time requirements, and the processing time will be greatly increased, which will reduce the performance of the radar system.

Method used

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  • Optimization method for target point aggregation processing in radar system
  • Optimization method for target point aggregation processing in radar system
  • Optimization method for target point aggregation processing in radar system

Examples

Experimental program
Comparison scheme
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Embodiment 1

[0051] combine figure 1 ,Such as figure 2 As shown, the optimization method of target point aggregation processing in a kind of radar system provided by the present invention comprises:

[0052] S1, acquiring the traces to be processed detected by the constant false alarm rate and the trace information of the traces to be processed;

[0053] Wherein, the trace to be processed is a target, and the trace information includes each target amplitude;

[0054] S2, based on the size of the target amplitude, sort the targets from large to small, and obtain a sorted dot trace array;

[0055] The objects can be sorted from largest to smallest using but not limited to radix sorting, which can reduce the time complexity.

[0056] S3, setting the current processing index as 0, and setting the access flag of the dot trace to false;

[0057] S4, judging whether the current index is greater than the size of the dot trace array;

[0058]S5, if the current index is not greater than the do...

Embodiment 2

[0072] As an optional embodiment of the present invention, the step of S9 includes:

[0073] Perform dot fusion processing on all the first dots of the current index from the current position of the dot-mark array to the end of the dot-mark array, and judge in turn for the remaining dots in the dot-mark array except the first dot Whether each trace in the remaining traces is within the window of the target, if it is to modify the access flag of the trace to true, if not then repeat the current index from the current position of the trace array to the trace array At the end, all the first traces of the traces are processed for trace fusion, and for the remaining traces except the first traces in the array of traces, it is judged in turn whether each trace in the remaining traces is in the window of the target Within, if it is to modify the access flag of the dot trace is true, until the remaining dot traces are judged.

Embodiment 3

[0075] As an optional embodiment of the present invention, before step S4, the optimization method further includes:

[0076] Determining the first position of the traces to be processed in the range-Doppler matrix and the second position in the sequence after the traces to be processed are sorted;

[0077] A mapping relationship between the first location and the second location is established.

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Abstract

The invention provides an optimization method for target point aggregation processing in a radar system. The method comprises the steps: obtaining to-be-processed trace points detected through a constant false alarm rate and the trace point information of the to-be-processed trace points, carrying out pre-ordering and optimization on the trace points according to amplitude information, forming a trace point group, and through employing an index mode and a target window mode, carrying out aggregation processing on the trace points in the trace point group to obtain a result after aggregation processing of the to-be-processed trace points. Compared with the prior art, the method has the advantages that the time complexity of processing the target point through trace point aggregation can be reduced, and the real-time requirement can be met when a large number of trace points are processed.

Description

technical field [0001] The invention belongs to the technical field of radar signal processing, and in particular relates to an optimization method for target point aggregation processing in a radar system. Background technique [0002] In the radar system, in order to improve the quality of the sampling signal, the sampling frequency of the general radar system will be greater than the Nyquist sampling frequency. This will lead to multiple target points for the same target point. After the constant false alarm processing, redundant traces will still be left, so it is necessary to use the trace aggregation algorithm to process them and retain the various parameter information that best reflects the target. points, while filtering out other false target points. [0003] As an important part of the radar signal processing process, spot aggregation can help the radar to accurately obtain the distance, speed, azimuth and other information of the target under the interference of...

Claims

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Application Information

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IPC IPC(8): G01S7/41G01S7/36G06F9/50G06F17/16
CPCG01S7/414G01S7/36G06F9/5038G06F17/16
Inventor 曹运合牛艺锋陈成增王宁罗运华吴春林王蒙王从思
Owner XIDIAN UNIV