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• W2914230198 startingPage "664" @default.
• W2914230198 abstract "This study deals with the problem of covariance matrix estimation for radar sensor signal detection applications with insufficient secondary data in non-Gaussian clutter. According to the Euclidean mean, the authors combined an available prior covariance matrix with the persymmetric structure covariance estimator, symmetric structure covariance estimator, and Toeplitz structure covariance estimator, respectively, to derive three knowledge-aided structured covariance estimators. At the analysis stage, the authors assess the performance of the proposed estimators in estimation accuracy and detection probability. The analysis is conducted both on the simulated data and real sea clutter data collected by the IPIX radar sensor system. The results show that the knowledge-aided Toeplitz structure covariance estimator (KA-T) has the best performance both in estimation and detection, and the knowledge-aided persymmetric structure covariance estimator (KA-P) has similar performance with the knowledge-aided symmetric structure covariance estimator (KA-S). Moreover, compared with existing knowledge-aided estimator, the proposed estimators can obtain better performance when secondary data are insufficient." @default.
• W2914230198 created "2019-02-21" @default.
• W2914230198 creator A5026844259 @default.
• W2914230198 creator A5033017179 @default.
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• W2914230198 date "2019-02-06" @default.
• W2914230198 modified "2023-10-16" @default.
• W2914230198 title "Knowledge-Aided Structured Covariance Matrix Estimator Applied for Radar Sensor Signal Detection" @default.
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• W2914230198 doi "https://doi.org/10.3390/s19030664" @default.
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