TY - GEN
T1 - Interference suppression using joint spatio-temporal domain filtering in passive radar
AU - Feng, Yuan
AU - Shan, Tao
AU - Liu, Shengheng
AU - Tao, Ran
N1 - Publisher Copyright:
© 2015 IEEE.
PY - 2015/6/22
Y1 - 2015/6/22
N2 - This paper addresses the problem of interference cancellation in passive bistatic radar. The impact of fractional time delay, channel linearity and reference channel signal-to-noise-ratio (SNR) on the interference cancellation performance is analyzed, and the results show that the performance of adaptive cancellation algorithm is degraded by the fractional time delay, the difference between the frequency responses of the surveillance channel and the reference channel, and a low reference channel SNR. To solve this problem, a signal reconstruction method is adopted to improve the reference signal quality, and a joint spa-tiotemporal domain interference suppression method is proposed to effectively mitigate direct-path interference and multi-path interference resulting in significant target SNR improvement The effectiveness of the proposed methods is verified by real data experiments.
AB - This paper addresses the problem of interference cancellation in passive bistatic radar. The impact of fractional time delay, channel linearity and reference channel signal-to-noise-ratio (SNR) on the interference cancellation performance is analyzed, and the results show that the performance of adaptive cancellation algorithm is degraded by the fractional time delay, the difference between the frequency responses of the surveillance channel and the reference channel, and a low reference channel SNR. To solve this problem, a signal reconstruction method is adopted to improve the reference signal quality, and a joint spa-tiotemporal domain interference suppression method is proposed to effectively mitigate direct-path interference and multi-path interference resulting in significant target SNR improvement The effectiveness of the proposed methods is verified by real data experiments.
KW - Passive radar
KW - adaptive filtering
KW - digital television (DTV)
KW - interference suppression
KW - spatial filtering
UR - http://www.scopus.com/inward/record.url?scp=84937899164&partnerID=8YFLogxK
U2 - 10.1109/RADAR.2015.7131168
DO - 10.1109/RADAR.2015.7131168
M3 - Conference contribution
AN - SCOPUS:84937899164
T3 - IEEE National Radar Conference - Proceedings
SP - 1156
EP - 1160
BT - 2015 IEEE International Radar Conference, RadarCon 2015
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2015 IEEE International Radar Conference, RadarCon 2015
Y2 - 10 May 2015 through 15 May 2015
ER -