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Networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth

A networked radar and radio frequency stealth technology, which is applied in the direction of using re-radiation, radio wave reflection/re-radiation, measuring devices, etc., can solve problems that affect radar detection, tracking and radio frequency stealth performance, and do not consider radar radio frequency stealth performance.

Pending Publication Date: 2020-06-23
NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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Problems solved by technology

[0004] At present, the literature on radar power resource management is relatively rich, but most of them improve the detection probability and tracking accuracy of targets by rationally allocating limited power resources, without considering the radio frequency stealth performance of radar.
in addition, signal bandwidth also affects radar detection, tracking and radio frequency stealth performance
However, there is no joint optimal allocation method of power and bandwidth based on radio frequency stealth in the networked radar system in the prior art, which has certain limitations

Method used

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  • Networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth
  • Networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth
  • Networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth

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Embodiment Construction

[0085] The structure and working process of the present invention will be further described below in conjunction with the accompanying drawings.

[0086] Starting from practical applications, the present invention proposes a networked radar power and bandwidth joint optimization allocation algorithm based on radio frequency stealth, and considers a networked radar system composed of multiple two-coordinate phased array radars. These two-coordinate radars are time, space and The frequencies are all synchronized. When the networked radar system tracks multiple targets, it is assumed that each radar can only track one target at most at any time, and each radar can only receive and process target echoes from its own transmitted signals. On this basis, with the data processing capacity of the fusion center, the prediction and tracking accuracy of the target at the next moment, and the radar transmission resources as constraints, and the optimization goal of minimizing the total tran...

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Abstract

The invention discloses a networking radar power and bandwidth joint optimization allocation method based on radio frequency stealth. The method comprises: determining the composition of a networkingradar system; taking the radar binary selection variable, the radar transmitting power and the signal bandwidth as independent variables, constructing a prediction Bayesian Cramer-Rao lower bound matrix of a target state estimation error, and taking an element corresponding to a target position component on a diagonal line of the prediction Bayesian Cramer-Rao lower bound matrix as a measurement index of target tracking precision; determining a target tracking precision threshold, and establishing a networking radar power and bandwidth joint optimization model based on radio frequency stealth;and solving the optimization model. According to the invention, constraint conditions such as data processing amount of a fusion center, prediction tracking precision of a target at the next moment and radar emission resources are satisfied. By taking minimization of the total transmitting power of the networking radar system as an optimization target, parameters such as radar selection, transmitting power and signal bandwidth in the multi-target tracking process are optimized, and the radio frequency stealth performance of the networking radar system during multi-target tracking is improved.

Description

technical field [0001] The invention relates to radar signal processing technology, in particular to a radio frequency stealth-based networked radar power and bandwidth joint optimal distribution method. Background technique [0002] The so-called networked radar is to rationally and appropriately optimize the layout of multiple radars with different polarization modes, different frequency bands and different systems, and the central station will comprehensively process, control and monitor the measurement data of each radar in the network. Management, so as to form an overall, unified and organic new institutional radar system. Compared with the traditional single station phased array radar, networked radar has many performance advantages such as space diversity, waveform diversity and multiplexing gain, so it has attracted extensive attention in recent years. [0003] In modern electronic warfare, the combat environment faced by radar is very complex. While completing the...

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Application Information

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IPC IPC(8): G01S13/87G01S13/72G01S7/282G01S7/35G01S7/36
CPCG01S7/282G01S7/35G01S7/36G01S13/726G01S13/87
Inventor 时晨光丁琳涛李海林周建江
Owner NANJING UNIV OF AERONAUTICS & ASTRONAUTICS
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