Networking radar multi-target tracking residence time optimization method based on radio frequency stealth

A multi-target tracking and networking radar technology, which is applied in the field of multi-target tracking dwell time optimization based on radio frequency stealth networking radar, can solve the problem of not considering the impact of the total dwell time of the transmitted signal bandwidth

Active Publication Date: 2019-11-05
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] Purpose of the invention: the purpose of the present invention is to provide a networked radar based on radio frequency stealth multi-target tracking dwell time optimization method, which can solve the problem in the prior art of "only for single target tracking scenarios, and does not consider the bandwidth of the transmitted signal. The impact of the total dwell time, with certain limitations" technical issues

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  • Networking radar multi-target tracking residence time optimization method based on radio frequency stealth
  • Networking radar multi-target tracking residence time optimization method based on radio frequency stealth
  • Networking radar multi-target tracking residence time optimization method based on radio frequency stealth

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[0045] This specific embodiment discloses a radio frequency stealth-based networked radar multi-target tracking dwell time optimization method, including the following steps:

[0046] S1: Construct a Bayesian Cramer-Rao lower bound matrix for predicting target state estimation errors with radar binary selection variables, radar dwell time and transmit signal bandwidth as independent variables for the networked radar system, and the Bayesian The Scramme-Rao lower bound matrix is ​​used as a measure of target tracking accuracy; the networked radar system includes N two-coordinate phased array radars, and the space, time and frequency of all radars are synchronized. When tracking multiple targets, Each radar can only receive and process target echoes from its own transmitted signals, and each radar can only track one target at most at any time;

[0047] S2: The prediction and tracking accuracy of the target at the next moment, the data processing capacity of the fusion center and...

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Abstract

The invention discloses a networking radar multi-target tracking residence time optimization method based on radio frequency stealth. A Bayes Cramer-Rao lower bound of target state estimation errors with radar binary selection variables, radar residence times and emission signal bandwidths as independent variables is constructed and taken as a measurement index of target tracking precision; on this basis, predicted tracking precision, data processing amount of a fusion center and radar emission resources of a target of the next moment are taken as constraint conditions, the total residence time of the minimized networking radar system is taken as an optimization target, and the radar selections, residence times, emission signal bandwidths and other parameters in the multi-target tracking process are subjected to optimization design. In this way, the requirement for the tracking precision of all the targets in the multi-target tracking process is met, the total residence time of the networking radar system is shortened to the greatest extent, and the radio frequency stealth performance of the networking radar system is improved during multi-target tracking is improved.

Description

technical field [0001] The invention relates to the field of radar signal processing, in particular to a radio frequency stealth-based networked radar multi-target tracking dwell time optimization method. Background technique [0002] In modern electronic warfare, in order to improve the radio frequency stealth performance of networked radar systems, the optimal design of radar radiation parameters has received extensive attention. For the networked radar system, its transmission parameters are dynamically controllable. Therefore, the target detection and tracking ability of the system can be improved by optimizing the design of the radar transmission parameters, and the radio frequency stealth performance of the networked radar can be improved. From the perspective of time resources, reducing the dwell time of each radar transmitting beam on the target is an important measure to improve the radio frequency stealth performance of the networked radar system. [0003] However...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01S7/41
CPCG01S7/415Y02T10/40
Inventor 时晨光仇伟汪飞李海林周建江夏伟杰
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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