Improved scheme for clutter rejection and DOA estimation in passive radar
- Resource Type
- article
- Authors
- Ke Wang; Xianrong Wan; Jianxin Yi; Yucheng Yi
- Source
- The Journal of Engineering (2019)
- Subject
- clutter
radar signal processing
passive radar
direction-of-arrival estimation
radar clutter
ofdm modulation
high-performance spatial-domain clutter rejection algorithm
adverse influence
arrival estimation
doa
improved processing scheme
direct-path signal
multipath signal
subcarrier-based spatial adaptive processing
Engineering (General). Civil engineering (General)
TA1-2040
- Language
- English
- ISSN
- 2051-3305
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.