Track initiation method and system based on target speed characteristics

A technology of track initiation and target speed, applied in the field of target tracking, can solve the problems of difficulty in track tracking and false tracks, and achieve the effect of suppressing false tracks and improving initial accuracy.

Active Publication Date: 2022-02-18
XTR SOLUTIONS
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Problems solved by technology

For the sea surface target tracking problem in the environment of severe sea clutter and the presence of ship wakes, at this time, the measurement points include both target points and a large number of sea clutter points, and the sea clutter The wave point trace also contains the trail clutter point trace related to the motion characteristics of the target. The interference measurement point trace caused by these targets is easy to cause false track, making track tracking extremely difficult

Method used

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  • Track initiation method and system based on target speed characteristics
  • Track initiation method and system based on target speed characteristics
  • Track initiation method and system based on target speed characteristics

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Embodiment Construction

[0035] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0036] In the description of the present invention, the meaning of several means one or more, and the meaning of multiple means two or more than two. Greater than, less than, exceeding, etc. are understood as not including the original number, and above, below, within, etc. are understood as including the original number . If the description of the first and second is only for the purpose of distinguishing the technical features, it cannot be understood as indicating or implying the relative importance or implicitly indicating the number...

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Abstract

The invention discloses a track initiation method and system based on target speed characteristics. The method includes: based on the principle of sequence priority, the current measurement point track is sequentially tracked with the reliable track, the temporary track and the original track. Track-point-track association processing, to obtain the associated track of the measurement point; if the associated track is a reliable track or a temporary track, then obtain the associated measurement point track at the adjacent time, estimate the movement direction of the target, and pass the target's The radial velocity is used to obtain the estimated movement velocity of the target in the direction of movement estimation, based on the fact that the velocity measurement error obeys a non-zero Gaussian distribution, the sum of the mean square velocity measurement error is calculated, and, based on the target's motion characteristics and the mean square velocity measurement error and, performing track quality inspection corresponding to the associated track, and updating the track state of the associated track according to the quality inspection result. The invention can effectively suppress the false track caused by the interference measurement point track caused by the target, and improve the initial precision of the track.

Description

technical field [0001] The invention relates to the technical field of target tracking, in particular to a track initiation method and system based on target speed characteristics. Background technique [0002] Multi-target tracking technology is very important in engineering applications, and track initiation as the basis of multi-target tracking technology directly determines the performance of multi-target tracker. For the sea surface target tracking problem in the environment of severe sea clutter and the presence of ship wakes, at this time, the measurement points include both target points and a large number of sea clutter points, and the sea clutter The wave point trace also contains the trail clutter point trace related to the target motion characteristics. The interference measurement points caused by these targets are likely to cause false tracks, making track tracking extremely difficult. Contents of the invention [0003] The present invention aims to solve at...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S13/72G01S13/88
CPCG01S13/72G01S13/88
Inventor 包晓军刘远曦李琳刘会涛黄辉刘航
Owner XTR SOLUTIONS
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