Multi-station radar station location and joint tracking method based on distributed PHD

A radar station, distributed technology, applied in the direction of reflection/re-radiation of radio waves, utilization of re-radiation, measurement devices, etc., can solve the problems of poor system robustness, large communication burden, huge communication burden, etc., and achieve fast convergence speed , the effect of small amount of calculation
CN110187336AActive Publication Date: 2019-08-30UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2019-08-30

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Abstract

The present invention discloses a multi-station radar station location and joint tracking method based on the distributed PHD (pulse height discrimination). The method comprises the following steps: S1, receiving echo signals, and performing local tracking filtering processing; S2, calculating a Chernoff information divergence formula between posterior in every two radars; S3, constructing an optimization problem model; S4, solving the optimization model, and obtaining position parameters of all radars relative to other radar sites; S5, selecting multi-sensor information fusion criteria; S6, jointing the posterior distribution to change into an edge density function, and obtaining a fused posterior density function according to the multi-sensor information fusion criteria; and S7, transmitting the fused posterior density function back to the local radar in the form of mixed Gaussian. According to the method provided by the present invention, information of the target can be measured bymultiple radars in the case of the unknown multi-station radar precise position, multi-station radar location, multi-target tracking and information fusion can be performed, and the method has a mallcalculation amount, a fast convergence speed, and other characteristics.
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Description

technical field

[0001] The invention belongs to the technical field of radar target tracking, in particular to a multi-station radar site location and joint tracking method based on distributed PHD. Background technique

[0002] In modern warfare, using multi-station radars widely distributed in the combat area to jointly track targets is already a research hotspot in the field of radar tracking. Compared with a single radar, the use of multi-station radar can obtain more dimensions and wider range of information about the target, thereby improving the detection performance of the target and the robustness of the system. When multi-station radars are used to jointly track targets, the precise positions of the multi-station radars need to be known in order to perform operations such as spatial alignment during information fusion. However, in actual scenarios, due to positioning errors and other reasons, the system cannot provide the accurate position of the radar, which lead...

Claims

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