MIMO radar multi-target tracking resource management method

A multi-target tracking and resource management technology, applied in the field of MIMO radar multi-target tracking resource management, can solve the problem of few research results

Inactive Publication Date: 2017-02-15
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Problems solved by technology

[0004] At present, the research on MIMO radar tracking resource management is still in its infancy, and the research results are few, and most of them are tracking resource man

Method used

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  • MIMO radar multi-target tracking resource management method

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Embodiment Construction

[0079] The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments.

[0080] Based on the detailed technical solution of the present invention, the optimal control vector of the MIMO radar is obtained at each moment, and the effect of the present invention is demonstrated by comparing with the phased array radar in the same scene.

[0081] It is assumed that the operating parameters of the radar are shown in the table below,

[0082] Table 1 Radar operating parameters

[0083]

[0084]

[0085] Assuming that the radar tracks two targets moving at a constant speed in the plane, the moving time of target 1 is 0-100s, the initial position is [122,122]km, and the speed is [45,50]m / s; the moving time of target 2 is 20 -100s, the initial position is [123,124]km, and the speed is [70,0]m / s. The trajectories of the two targets are as follows figure 1 shown. The process noise autocorrelation matrices for both ...

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Abstract

The invention belongs to the technical field of MIMO radar, and particularly provides an MIMO radar multi-target tracking resource management method. Firstly traversal of controllable parameter combinations is performed, and whether the controllable parameter combinations can meet the detection probability and beam direction constraints is judged so as to form an MIMO radar control vector feasible set; then deviation cost and the energy resource consumption cost between the prediction tracking error covariance and the expected covariance of the targets are calculated under each control vector in the feasible set; and the two cost is integrated, and the optimal radar control vectors are acquired according to the criterion of the minimum integrated cost. The advantages that MIMO radar utilizes single beam to irradiate multiple targets can be fully exerted under the multi-target environment so that the sampling frequency of each target can be increased, the time resource utilization rate of radar can be effectively enhanced and the deviation between the actual tracking error covariance and the expected covariance of the targets can be reduced, and the tracking accuracy of the method can be controlled by the method through adjusting the expected tracking error covariance.

Description

technical field [0001] The invention belongs to the technical field of MIMO radar, and in particular relates to a resource management method for MIMO radar multi-target tracking. Background technique [0002] MIMO radar is a new system radar widely researched and developed at present. MIMO radar can flexibly divide the array antenna into sub-arrays, so that it can transmit low-gain wide beams, high-gain narrow beams, or somewhere in between, so MIMO radars are effective in interference suppression and target detection It has better performance than other radars in terms of performance and target parameter estimation performance. In order to effectively allocate various resources of MIMO radar, match the radar system resources with the entire task load, and fully utilize the radar performance, it is necessary to implement effective scheduling management for MIMO radar. For MIMO radar, its flexible and variable number of sub-arrays makes the radar transmit beam more diverse,...

Claims

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Application Information

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IPC IPC(8): G01S13/66G01S13/72
CPCG01S13/66G01S13/726
Inventor 程婷张洁李姝怡张宇轩王栋
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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