A 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: 2019-05-10
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 management in single target scenarios; however, due to the wide span of MIMO radar beam width, multiple target, which is more advantageous in the context of multi-target tracking

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  • A MIMO radar multi-target tracking resource management method
  • A MIMO radar multi-target tracking resource management method
  • A 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 specifically provides a MIMO radar multi-target tracking resource management method; firstly, the controllable parameter combination is traversed, and it is judged whether it can meet the constraints of detection probability and beam pointing, so that it is feasible to form a MIMO radar control vector set; next, under each control vector in the feasible set, calculate the deviation cost and energy resource consumption cost between the target's prediction tracking error covariance and expected covariance; combine the two costs, and obtain the optimal Radar control vector. In a multi-target environment, the present invention can give full play to the advantages of MIMO radar using a single beam to irradiate multiple targets, increase the sampling times for each target, effectively improve the utilization rate of radar time resources and reduce the actual tracking error covariance and The deviation between the expected covariances, and the method is able to control the tracking accuracy of the method by 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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Patent Type & Authority Patents(China)
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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