Radio frequency stealth performance optimization method for radar and communication combined system

Abstract

The invention discloses a radio frequency stealth performance optimization method for a radar and communication combined system. The method comprises the following steps: acquiring target detection channel frequency response and communication channel frequency response prior information; respectively constructing a mutual information expression representing target parameter estimation performanceand a data transmission rate expression representing communication performance; constructing a radio frequency stealth optimization model of the radar and communication joint system; and solving the radio frequency stealth optimization model of the radar and communication combined system to obtain an optimal radar transmitting waveform and optimal communication transmitting power distribution. According to the method, under the condition of considering predetermined mutual information threshold parameter estimation and certain communication data rate delivery information, the total transmitting power of the radar and communication joint system is minimized by optimizing radar transmitting waveform design and communication transmitting power distribution, so the radio frequency stealth performance of the system is improved.

Description

technical field [0001] The invention relates to radar waveform design technology, in particular to a method for optimizing radio frequency stealth performance of a radar and communication joint system. Background technique [0002] With the rapid development of computer technology, radar communication technology and integrated circuit technology, the combined radar and communication system has received great attention. The joint radar and communication system can simultaneously estimate the environmental parameters from the radar return signal and decode the received communication signal. In the design stage, the performance of the joint radar and communication system can significantly reduce the radar being detected, discovered, identified, and detected by passive electronic reconnaissance equipment. The probability of being attacked by anti-radiation missiles, thereby improving the battlefield survivability and combat effectiveness of the radar itself and its platform. ...

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Problems solved by technology

[0004] Although the above methods propose a method to optimize the performance of the radar and communication joint system, which improves the target detection performance and parameter estimation performance of the system in the clutter environment, these methods do not consider the optimization design based on the radio frequency stealth performance of the radar and communication joint system

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