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Random finite set based multi-target tracking method in outer radiation source radar

An external radiation source radar and multi-target tracking technology, which is applied in the field of multi-target tracking based on random finite sets in external radiation source radar, can solve problems such as large amount of calculation

Inactive Publication Date: 2014-10-15
XIDIAN UNIV
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AI Technical Summary

Problems solved by technology

In the external radiation source radar, the (PF‐PHD) probability hypothesis density particle filter algorithm is used to realize multi-target tracking. Although data association can be avoided, a large number of particles are needed to ensure the tracking performance, and the calculation is too large

Method used

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  • Random finite set based multi-target tracking method in outer radiation source radar
  • Random finite set based multi-target tracking method in outer radiation source radar
  • Random finite set based multi-target tracking method in outer radiation source radar

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Embodiment Construction

[0062] The present invention will be further described below in conjunction with accompanying drawing:

[0063] Step 1, refer to figure 1 , is a schematic diagram of the usage scenario of the present invention. In the embodiment of the present invention, the external radiation source radar (i.e. figure 1 The receiving station in) receives the digital TV signal, and the digital TV signal includes the direct wave signal of each transmitting station ( figure 1 Among them, the three transmitting stations directly send digital TV signals to the receiving station), the multipath signals of each transmitting station and the target echo signals of each transmitting station. In the embodiment of the present invention, the number of transmitting stations is 1.

[0064] The digital TV signal received by the external radiation source radar is sequentially demodulated and re-encoded to reconstruct the direct wave signal of each transmitting station.

[0065] Step 2, using the direct wa...

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Abstract

The invention belongs to the technical field of multi-target tracking of outer radiation source radar, and particularly relates to a random finite set based multi-target tracking method in outer radiation source radar. The random finite set based multi-target tracking method in the outer radiation source radar comprises the following steps of: receiving digital television signals by using the outer radiation source radar, and sequentially demodulating as well as recoding the digital television signals received by the outer radiation source radar so as to reconstruct a direct wave signal of each launch station; performing self-adaptive clutter cancellation treatment on the digital television signals received by the outer radiation source radar by utilizing the direct wave signals of each launch station so as to obtain signals after the clutter cancellation; obtaining an observation amount of each target based on the signals after the clutter cancellation and the reconstructed direct wave signals of each launch station; implementing locating and tracking on each target in a rectangular observation region of the outer radiation source radar by adopting a probability hypothesis density particle filter method, wherein the locating and tracking method of each target is an arrival time positioning method.

Description

technical field [0001] The invention belongs to the technical field of external radiation source radar multi-target tracking, in particular to a random finite set-based multi-target tracking method in external radiation source radar. The invention can realize precise tracking of multiple targets under the background of clutter, and the calculation time is relatively short. Background technique [0002] With the development of modern electronic technology, traditional active radar is facing a serious survival crisis in the threats of electronic interference, anti-radiation missiles, ultra-low altitude penetration and stealth technology. In order to deal with the four major threats in modern electronic warfare, external radiation source radar has become a research hotspot in the field of radar. External radiation source radar itself does not emit electromagnetic waves, but uses existing civilian signals (such as FM frequency modulation signals, GMS (Global System for Mobile c...

Claims

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Application Information

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IPC IPC(8): G01S13/66
CPCG01S13/66
Inventor 王俊王海环
Owner XIDIAN UNIV
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