A Real-time Discrimination Method for Operating State of Terminal Guidance Radar in Complex Electromagnetic Environment

doi:10.3969/j.issn.1000-1093.2021.01.009

Abstract

Abstract: The accurate judgment of operating state of terminal guidance radar is one of the important preconditions to infer the threat degree of enemy missile and evaluate the jamming effect of electronic warfare system. For low discrimination accuracy of operating state of terminal guidance radar due to inaccurate and incomplete signal in complex electromagnetic environment, a new method for real-time discrimination of operating state of terminal guidance radar in complex electromagnetic environment is proposed. A status breakpoint discrete method is used for discriminating. The samples with the same working state and similar eigenvalues are classified into one class by using this method, which makes the division of the discrete interval reasonable, and the anti-noise capability of the discrimination method be enhanced. A basic probability assignment (BPA) correction method based on incomplete information is also used in discrimination.In this method, the BPA output from support vector machine is corrected by using the similar correction factor, and the incomplete information is utilized without introducing human error. The simulated results show that the proposed method can improve the discrimination accuracy of operating state of terminal guidance radar.

Key words: radaroperatingstate, real-timediscrimination, discretization, incompleteinformation, supportvectormachine

CLC Number:

TN974

LEI Zhenshuo, LIU Songtao, WEN Zhenming, GE Yang. A Real-time Discrimination Method for Operating State of Terminal Guidance Radar in Complex Electromagnetic Environment[J]. Acta Armamentarii, 2021, 42(1): 83-90.

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