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Radar track initiation method based on trace point feature information

A technology of track initiation and feature information, applied in the field of radar, which can solve the problems of free point traces that are prone to errors associated with clutter point traces, the use of point trace feature information that is not considered, and the small maximum space velocity.

Active Publication Date: 2020-10-09
BEIJING INST OF RADIO MEASUREMENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006]The existing track initiation method is mainly designed based on the location information of the track, without considering the use of feature information of the track, so for different types of targets The free track of the free point track adopts the same track initiation criteria. With the increase of target types, such as low-slow and small targets, civil aircraft targets, bird targets, etc., in order to ensure the track start of low-slow and small targets performance, the value of the maximum space velocity is small, and the track initiation performance of the civil aircraft target cannot be considered at this time; in order to ensure the track initiation performance of the civil aircraft target, the value of the maximum space velocity is large, and the The free track of a small target is easily mistakenly associated with the clutter track, and the target track cannot be established in time

Method used

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  • Radar track initiation method based on trace point feature information

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Embodiment Construction

[0037] Such as figure 1 As shown, a method for starting a radar track based on point track feature information in an embodiment of the present invention includes the following steps:

[0038] S1. Take the i-th free track at time k-1 as the starting point z of the track at time k-1 k-1,i , according to the starting point z of the track at time k-1 k-1,i The point track feature information and target classification criteria get the track starting point z at the k-1 moment k-1,i target type c k-1,i , and according to the starting point z of the track at time k-1 k-1,i and the starting point z of the track at the k-1 moment k-1,i target type c k-1,i Establish the associated wavegate G at time k k,i , where k is a positive integer greater than 1, i is a positive integer, let the initial moment k 0 =k-1;

[0039] S2. Obtain the associated wavegate G falling into the time k k,i The set of free traces in Z k , and from the free trace set Z at time k k Select the starting po...

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Abstract

The invention relates to a radar track initiation method based on trace point feature information. The target type of each free trace point is obtained by utilizing trace point feature information anda target classification criterion; furthermore, a stable track is established in a self-adaptive manner based on the target type of each free trace point, the track initiation performance of a low, slow and small target can be ensured, the track initiation performance of a civil aircraft target can be considered, the free trace point of the low, slow and small target cannot be mistakenly associated with a clutter trace point, and a stable track can be timely and simultaneously established for the low, slow and small target, the civil aircraft target, the bird target and the like, so that theradar track initiation method capable of improving the target track initiation performance of the radar system is realized.

Description

technical field [0001] The invention relates to the technical field of radar technology, in particular to a radar track initiation method based on point track characteristic information for improving the target track initiation performance of a radar system. Background technique [0002] Track initiation is an important part of the radar system in the radar data processing process. Its tasks are: on the one hand, when the target enters the radar's responsibility area, it can quickly and accurately establish the target track start; on the other hand, It is also necessary to reduce the number of false tracks. The essence of track initiation is the process of judging whether to establish a target track based on the point track feature information obtained by radar multiple detections. [0003] Track initiation can be divided into two categories: sequential processing technology and batch processing technology according to the different processing methods, specifically: [0004...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S13/58G01S7/41
CPCG01S13/58G01S7/415
Inventor 刘红亮王佳斌赵庆媛闫雪梅景凯
Owner BEIJING INST OF RADIO MEASUREMENT
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