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Phased array radar networking system resource management method based on multi-target tracking

A phased array radar and multi-target tracking technology, which is applied in the field of joint management of beam and dwell time resources, can solve the problems that several targets cannot be effectively tracked and system resources are wasted

Active Publication Date: 2018-02-23
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to address the defects of the background technology, research and design a phased array radar network resource management method based on multi-target tracking, to solve the problem of phased array radar network tracking multiple targets in the multi-beam working mode , due to different target positions, angles, RCS and radar space diversity gains, each target has different requirements for phased array radar networking beams and dwell time in order to maintain predetermined tracking accuracy, resulting in waste of system resources and some targets cannot be detected. Effective Tracking Issues

Method used

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Embodiment Construction

[0063] A specific embodiment of the present invention is given below according to a MATLAB simulation example.

[0064] Since the number of pulses is directly proportional to the dwell time of the beam, the present invention uses the number of pulses to reflect the dwell time.

[0065] Step 1: Study radar and target topology and establish managed resource variables

[0066] Initialize the system parameters, given the radar position and the initial state of the target as shown in Table 1 and Table 2, respectively. Considering the operability, select the beam pointing to Φ k and dwell time ΔT k Variables for this resource management.

[0067] Table 1 Radar position

[0068]

[0069] Table 2 Target initial state

[0070]

[0071]

[0072] Step 2: Establishment of resource optimization model

[0073] The Bayesian Cramerot bound is introduced, and the tracking accuracy criterion formula (5) is derived. Combining the beam and dwell time constraints, an optimization pr...

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Abstract

The invention discloses a phased array radar networking system resource management method based on multi-target tracking, which belongs to the field of phased array radar networking resource management technologies, and relates to multi-target tracking. The phased array radar networking system resource management method based on multi-target tracking comprises the steps of: firstly, studying a topological structure between a radar network and a target, and analyzing influence of different angles and space diversity gains of different targets on an echo signal-to-noise ratio when a multi-phasedarray radar network is in a multi-beam operating mode; and secondly, optimizing a beam pointing direction and a beam dwell time of each radar on the premise that tracking precision of each target satisfies a predetermined requirement, so that the total dwell time of the radar networking beam used for tracking is shortest. Since target positions, angles, RCS and radar networking space diversity gains are different, the requirement for system resources of each target for maintaining the preset tracking precision changes and the problem that a plurality of targets cannot be effective tracked iscaused. The phased array radar networking system resource management method based on multi-target tracking realizes the orderly tracking of the plurality of targets by means of the system while savingresources.

Description

technical field [0001] The invention belongs to the technical field of phased array radar networking resource management, and relates to multi-target tracking, research on joint management technology of beams and dwell time resources of a multi-radar system in a multi-target tracking mode. Background technique [0002] Phased array radar is an important radar that has been extensively researched and developed at present. Because its beam can be directed at will and can be agile at the level of microseconds to hundreds of microseconds, it has multi-functional, multi-target and highly adaptive capabilities. Has great flexibility and so on. The combination of phased array radar and computer control technology can adaptively change the relevant working parameters and working methods of the radar to adapt to the changing working environment, such as changing the antenna beam shape, beam dwell time and power distribution, etc. Therefore, the management of phased array radar resou...

Claims

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Application Information

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IPC IPC(8): G01S13/72H04B7/0408
CPCG01S13/726H04B7/0408
Inventor 易伟王祥丽付月黎明孔令讲李雯翟博文袁野
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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