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Multi-target tracking time resource and signal bandwidth united optimization method of networking radar

A multi-target tracking and networking radar technology, which is applied in the field of networked radar multi-target tracking time resources and joint optimization of signal bandwidth, can solve the problem of multi-target tracking scenarios that are not involved in networking radar, and have no networked radar multi-target tracking The joint optimization method of time resources and signal bandwidth does not take into account the influence of the sampling interval of the transmitted signal bandwidth, etc.

Active Publication Date: 2020-02-14
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0003] For the optimal design of the sampling interval, the existing research results are limited to the scenarios of single-radar single-target tracking, single-radar multi-target tracking and networked radar single-target tracking, and have not yet involved the networked radar multi-target tracking scenario Under the research, and did not take into account the impact of the transmitted signal bandwidth on the sampling interval, has certain limitations
There is no joint optimization method of time resources and signal bandwidth for multi-target tracking of networked radar in the prior art

Method used

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  • Multi-target tracking time resource and signal bandwidth united optimization method of networking radar
  • Multi-target tracking time resource and signal bandwidth united optimization method of networking radar
  • Multi-target tracking time resource and signal bandwidth united optimization method of networking radar

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Embodiment Construction

[0084] A method for jointly optimizing networked radar multi-target tracking time resources and signal bandwidth, comprising the following steps:

[0085] (1) Considering a networked radar system composed of N space, time, and frequency synchronized two-coordinate phased array radars, when tracking multiple targets, each radar can only receive and process the target feedback from its own transmitted signal. At the same time, each radar can only track one target at most at any time;

[0086] (2) For targets whose tracking accuracy meets the requirements and do not require radar radiation, it is assumed that all aircraft in the aircraft formation are equipped with passive sensors to receive radiation signals from the targets, and use the radiation signals of the targets for passive time difference of arrival positioning;

[0087] (3) Construct the predictive Bayesian Cramer-Roo lower bound matrix of the target state estimation error with the irradiation target index, radar binar...

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Abstract

The invention discloses multi-target tracking time resource and signal bandwidth united optimization method of networking radar. The tracking accuracy of each target in the multi-target tracking process is met, self-adaptive dynamic optimization is performed on parameters such as irradiation target selection, radar allocation mode and emission signal bandwidth during the multi-target tracking process, the target irradiation frequency of a networking radar system during the whole tracking process is reduced to the greatest extent, so that the radio frequency stealth performance of the networking radar system during multi-target tracking is effectively improved.

Description

technical field [0001] The invention relates to the technical field of radar signal processing, in particular to a joint optimization method for networked radar multi-target tracking time resources and signal bandwidth. Background technique [0002] In today's battlefield environment, phased array radars must be able to counter enemy intercept receivers. Since the networked radar system can adaptively adjust the transmission parameters, it has obvious advantages in terms of tracking accuracy and radio frequency stealth performance when compared with traditional phased array radars. At present, the radiation parameter design of networked radar has been paid more and more attention by domestic and foreign scholars and research institutions. From the perspective of time resources, increasing the revisit time interval of each radar to the illuminated target is an important measure to improve the radio frequency stealth performance of the networked radar system. [0003] For th...

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Application Information

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IPC IPC(8): G01S13/72G01S13/87
CPCG01S13/72G01S13/87
Inventor 时晨光仇伟汪飞李海林周建江夏伟杰孔莹莹
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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