TY - GEN
T1 - An iterative algorithm for passive detection with direct-path interference
AU - Zhang, Xin
AU - Li, Hongbin
AU - Himed, Braham
N1 - Publisher Copyright:
© 2018 German Institute of Navigation - DGON.
PY - 2018/8/27
Y1 - 2018/8/27
N2 - Passive radar detects and tracks targets of interest using non-cooperative illuminators of opportunity (IOs). This type of radar has become very popular nowadays since qualified IO sources are widely accessible. In this work, the target detection problem for passive multistatic radar is studied. The radar receivers observe not only noise-contaminated reflections of the IO signal but also non-negligible direct-path interference (DPI). We propose a generalized likelihood ratio test (GLRT) approach, where the estimation problem in the alternative hypothesis is solved by using an iterative method. The signal transmitted from the IO is treated as a deterministic but unknown process. A clairvoyant matched filtering detector is also provided to benchmark the detection performance by assuming the knowledge of the IO waveform. Numerical results show the effectiveness of our proposed detector when DPI is present.
AB - Passive radar detects and tracks targets of interest using non-cooperative illuminators of opportunity (IOs). This type of radar has become very popular nowadays since qualified IO sources are widely accessible. In this work, the target detection problem for passive multistatic radar is studied. The radar receivers observe not only noise-contaminated reflections of the IO signal but also non-negligible direct-path interference (DPI). We propose a generalized likelihood ratio test (GLRT) approach, where the estimation problem in the alternative hypothesis is solved by using an iterative method. The signal transmitted from the IO is treated as a deterministic but unknown process. A clairvoyant matched filtering detector is also provided to benchmark the detection performance by assuming the knowledge of the IO waveform. Numerical results show the effectiveness of our proposed detector when DPI is present.
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U2 - 10.23919/IRS.2018.8448177
DO - 10.23919/IRS.2018.8448177
M3 - Conference contribution
AN - SCOPUS:85053610744
SN - 9783736995451
T3 - Proceedings International Radar Symposium
BT - 2018 19th International Radar Symposium, IRS 2018
A2 - Rohling, Hermann
T2 - 19th International Radar Symposium, IRS 2018
Y2 - 20 June 2018 through 22 June 2018
ER -