Open AccessInformation divergence‐based low probability of intercept waveform detection for multi‐antenna intercept receivers
Author(s) -
Chen Jun,
Wang Fei,
Zhou Jianjiang,
Shi Chenguang
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0589
Subject(s) - waveform , antenna (radio) , divergence (linguistics) , computer science , acoustics , electronic engineering , telecommunications , physics , engineering , linguistics , philosophy , radar
Based on the asymptotic spectral distribution of sample covariance matrix, a new low probability of interception (LPI) signal detection method for multi‐antenna intercept receiver is proposed via reforming the noise sequence into a Wishart matrix. The authors deduce the asymptotic cumulative distribution function (CDF) of eigenvalues of sample covariance matrix. Also a numerical Kullback–Leibler divergence of the empirical spectral CDF based on test samples from the deduced asymptotic CDF is established, which is treated as the test statistic. By comparing with other signal detection methods, simulation results show the new LPI signal detection method is superior and robust.