TY - JOUR
T1 - A Direct-Path Interference Resistant Passive Detector
AU - Zhang, Xin
AU - Li, Hongbin
AU - Himed, Braham
N1 - Publisher Copyright:
© 1994-2012 IEEE.
PY - 2017/6
Y1 - 2017/6
N2 - Passive radar, which detects and tracks targets of interest by using noncooperative illuminators of opportunity (IOs), has become popular since qualified IO sources are widely accessible nowadays. This letter examines the target detection problem for a passive multistatic radar, where the receivers are contaminated by nonnegligible noise and direct-path interference (DPI). The signal transmitted from the IO is treated as a deterministic but unknown process. A generalized likelihood ratio test approach is proposed, where the H1 estimation problem is solved using an iterative method. A clairvoyant matched filtering detector, which assumes the knowledge of the IO waveform, is provided as well to benchmark performance. Simulation results are presented to show the effectiveness of the proposed detector in the presence of DPI.
AB - Passive radar, which detects and tracks targets of interest by using noncooperative illuminators of opportunity (IOs), has become popular since qualified IO sources are widely accessible nowadays. This letter examines the target detection problem for a passive multistatic radar, where the receivers are contaminated by nonnegligible noise and direct-path interference (DPI). The signal transmitted from the IO is treated as a deterministic but unknown process. A generalized likelihood ratio test approach is proposed, where the H1 estimation problem is solved using an iterative method. A clairvoyant matched filtering detector, which assumes the knowledge of the IO waveform, is provided as well to benchmark performance. Simulation results are presented to show the effectiveness of the proposed detector in the presence of DPI.
KW - Direct-path interference (DPI)
KW - generalized likelihood ratio test (GLRT)
KW - passive multistatic detection
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U2 - 10.1109/LSP.2017.2688459
DO - 10.1109/LSP.2017.2688459
M3 - Article
AN - SCOPUS:85027337970
SN - 1070-9908
VL - 24
SP - 818
EP - 822
JO - IEEE Signal Processing Letters
JF - IEEE Signal Processing Letters
IS - 6
M1 - 7888539
ER -