| LIKELIHOOD RATIO DETECTION OF SWERLING——Ⅱ TARGETS IN RICIAN CLUTTER |
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| 摘 要： | The discrete time detection of Swerling Ⅱ targets in Rician clutter is investigated.The likelihood ratio (LR) detector is structured when the clutter steady part is coherent and noncoherent are developed respectively.The efficacy expressions of the detectors are derived.The calculation results show that the more the clutter statistics depart from the Gaussian situation,the better the detection performance of LR detectors is than that of square law detectors.The asymptotic relative efficiency (ARE) in case of clutter steady part being coherent can be twofold higher than that iu case of clutter steady part being noncoherent.
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Likelihood ratio detection of swerling II targets in Rician clutter |
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| Authors: | Zhu Zhaoda |
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| Affiliation: | (1) Nanjing Aeronautical Institute, Nanjing, China |
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| Abstract: | The discrete time detection of Swerling II targets in Rician clutter is investigated. The likelihood ratio (LR) detector is
structured when the clutter steady part is coherent and noncoherent are developed respectively. The efficacy expressions of
the detectors are derived. The calculation results show that the more the clutter statistics depart from the Gaussian situation,
the better the detection performance of LR detectors is than that of square law detectors. The asymptotic relative efficiency
(ARE) in case of clutter steady part being coherent can be twofold higher than that in case of clutter steady part being noncoherent. |
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