A DMRS Robust Waveform Design Method Based on RF Stealth Performance Optimization

Abstract

The invention discloses a DMRS (Distributed Multiple-Radar System) robust waveform design method based on radio frequency stealth performance optimization, which comprises the steps of firstly modeling an actual frequency response of a target into an uncertainty set with the upper and lower bounds being known according to prior knowledge, and using the uncertainty set to represent a certain frequency response range of the target relative to each radar in a DMRS; then taking minimization of the total transmitting energy of the DMRS as an objective, and building a DMRS robust waveform optimization design model based on radio frequency stealth performance optimization under the condition of meeting certain target detection performance, and solving the model through a Lagrange multiplier method; and acquiring each radar robust transmitting waveform enabling the total transmitting energy of the DMRS to be minimum under the condition of meeting the target detection performance through iterative calculation, regarding the radar robust transmitting waveform as an optical solution, and thus being capable of acquiring the minimum constraint condition conforming total transmitting energy of the DMRS. The method disclosed by the invention reduces the total DMRS waveform transmitting energy, and the radio frequency stealth performance of the system is improved.

Description

technical field [0001] The invention relates to a distributed radar robust waveform design method based on radio frequency stealth performance optimization, and belongs to the technical field of radar waveform design. Background technique [0002] With the rapid development of computer technology, communication technology and microwave integrated circuits, as well as the increasing complexity of modern warfare, more and more sensors are integrated into the integrated network to participate in coordinated operations. At the same time, in the face of the increasingly complex battlefield electromagnetic environment, the comprehensive utilization of multi-sensor information for multi-sensor information fusion in the space domain can not only improve the reliability and survivability of the system, but also obtain information as comprehensively and accurately as possible. Distributed Multiple-Radar Systems (DMRS) is an inevitable trend in the development of future networked strug...

AI Technical Summary

Problems solved by technology

[0005] Although the above methods proposed the idea of ​​radar waveform optimization design and improved the target detection performance and parameter estimation performance of the system in the clutter environment, these methods did not consider the robust optimization design based on the radio frequency stealth performance under the DMRS model

In addition, the above methods all assume that the real frequency response of the target is known. However, in practical applications, prior information such as the real frequency response of the target is often difficult to obtain

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