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Joint Allocation Method of Time Power Resource for Multi-beam Radar

A technology of joint allocation and power resources, which is applied in radio wave measurement system, radio wave reflection/re-radiation, utilization of re-radiation, etc., to save radar resources, improve tracking performance, and increase the number of effects

Active Publication Date: 2017-07-28
XIDIAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The purpose of the present invention is to address the deficiencies of the above-mentioned prior art, and propose a multi-beam radar time power resource joint allocation method based on dynamic programming, so as to pass Learn the scene, obtain target information, adjust and manage radar resources, and increase the number of targets tracked by multi-beam radar

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  • Joint Allocation Method of Time Power Resource for Multi-beam Radar
  • Joint Allocation Method of Time Power Resource for Multi-beam Radar
  • Joint Allocation Method of Time Power Resource for Multi-beam Radar

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Embodiment Construction

[0025] refer to figure 1 , the implementation steps of the present invention are as follows:

[0026] Step 1, group the goals.

[0027] (1a) There are N targets to be tracked for tracking, and the estimated position of each target to be tracked is obtained speed estimate And the signal-to-noise ratio of the echo, sort and number the targets to be tracked according to the signal-to-noise ratio of the echo from large to small;

[0028] (1b) According to the number B of targets that can be tracked by the radar at one time, divide the N targets into M groups, M=N / B, and add the trackable targets into groups 1 to M in turn according to the number of the targets, and one target only Can be divided into a group, the number of targets in each group is B.

[0029] Step 2, set the target tracking error variance threshold value 0≤Thr≤15, calculate the tracking error variance f(P n ,τ n ).

[0030] (2a) According to the ratio of target signal-to-noise ratio in each group, distrib...

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Abstract

The present invention discloses a time resource joint distribution method of a multi-beam phased-array radar, and the problem of a small number of tracking targets caused by the inconsideration of a target tracking error in radar time power distribution in the prior art is solved. The scheme of the invention is that firstly tracking targets are grouped, emission power and residence time are distributed in proportion to the targets according to the magnitude of target echo signal to noise ratios, the tracking error variance of each target is allowed to meet a set threshold requirement, then a dynamic programming method is used to distribute the limited time power resources of the radar, and thus the radar is allow track more targets. According to the method, in the condition of not changing radar hardware facilities, radar consumption time and the power resources, the number of tracking targets of the multi-beam radar is raised, and the method can be used for a multi-beam fire control phased-array radar with the needed of facing a lot of targets.

Description

technical field [0001] The invention belongs to the field of radar technology, and relates to multi-beam radar dwell time and power distribution, so as to save radar resources under the premise of ensuring tracking accuracy, and can be used for multi-beam fire control phased array radars that need to face a large number of targets. [0002] technical background [0003] In recent years, phased array radar technology has been widely used. This radar can simultaneously generate multiple beams and illuminate multiple targets, and can flexibly adjust the direction of each beam and the size of its transmission power. Due to these flexible characteristics of multi-beam phased array radar, it provides the possibility to allocate radar resources. Different tracking effects can be achieved by combining multiple targets, adjusting the transmit power, and adjusting the dwell time of irradiating a certain target. According to the target scene and the requirements of different radars, b...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01S7/02G01S13/66
CPCG01S7/02G01S13/66
Inventor 刘宏伟戴奉周张博秦童赵永波
Owner XIDIAN UNIV
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