Open AccessImproved scheme for clutter rejection and DOA estimation in passive radar
Author(s) -
Wang Ke,
Wan Xianrong,
Yi Jianxin,
Yi Yucheng
Publication year - 2019
Publication title -
the journal of engineering
Language(s) - English
Resource type - Journals
ISSN - 2051-3305
DOI - 10.1049/joe.2019.0584
Subject(s) - clutter , subcarrier , computer science , scheme (mathematics) , constant false alarm rate , direction of arrival , radar , path (computing) , signal (programming language) , algorithm , passive radar , radar signal processing , signal processing , space time adaptive processing , real time computing , electronic engineering , continuous wave radar , telecommunications , radar imaging , engineering , orthogonal frequency division multiplexing , mathematics , computer network , mathematical analysis , channel (broadcasting) , antenna (radio) , programming language
Targets are hard to be detected by passive radars unless clutter, namely direct‐path signal and multi‐path signal, is suppressed. The subcarrier‐based spatial adaptive processing is a high‐performance spatial‐domain clutter rejection algorithm. It may have adverse influence on the direction of arrival (DOA) estimation. The study analyses the influence theoretically and proposes an improved processing scheme to avoid the influence. Experimental results using real data validate the proposed scheme.