A Direct-Path Interference Resistant Passive Detector

Xin Zhang; Hongbin Li; Braham Himed

doi:10.1109/LSP.2017.2688459

A Direct-Path Interference Resistant Passive Detector

Xin Zhang
, Hongbin Li
, Braham Himed

Research output: Contribution to journal › Article › peer-review

19 Scopus citations

Abstract

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.

Original language	English
Article number	7888539
Pages (from-to)	818-822
Number of pages	5
Journal	IEEE Signal Processing Letters
Volume	24
Issue number	6
DOIs	https://doi.org/10.1109/LSP.2017.2688459
State	Published - Jun 2017

Keywords

Direct-path interference (DPI)
generalized likelihood ratio test (GLRT)
passive multistatic detection

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10.1109/LSP.2017.2688459

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abstract = "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.",

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author = "Xin Zhang and Hongbin Li and Braham Himed",

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AU - Himed, Braham

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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)

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A Direct-Path Interference Resistant Passive Detector

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