Multistatic passive detection in the presence of direct-path interference
| Autor: | Xin Zhang, Braham Himed, Hongbin Li |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Engineering
business.industry Detector 020206 networking & telecommunications Direct path 02 engineering and technology Residual Interference (wave propagation) Passive radar Likelihood-ratio test 0202 electrical engineering electronic engineering information engineering Electronic engineering Waveform 020201 artificial intelligence & image processing Passive detection business |
| Zdroj: | 2017 IEEE Radar Conference (RadarConf). |
| Popis: | This paper examines the target detection problem in multistatic passive radar with one non-cooperative illuminator of opportunity (IO) and multiple distributed receivers. Unlike most existing passive detectors which ignore the residual direct-path interference (DPI), we consider explicitly its effect and develop two new detectors under the conditions of known noise level and, respectively, when it is unknown. Another distinction from existing solutions is that the proposed detectors exploit the correlation of the IO waveform for passive detection. The proposed detectors are developed within the generalized likelihood ratio test (GLRT) framework, which involves non-linear estimation that is solved using the expectation-maximization algorithm. Numerical results are presented to illustrate the performance of the proposed methods and several well-known passive detectors. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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