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首页> 外文期刊>IEEE Geoscience and Remote Sensing Letters >GLRT Detection of Micromotion Targets for the Multichannel SAR-GMTI System
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GLRT Detection of Micromotion Targets for the Multichannel SAR-GMTI System

机译:多通道SAR-GMTI系统微运动目标的GLRT检测

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摘要

This letter investigates the micromotion target detection problem for the multichannel synthetic aperture radar (SAR)- ground moving target indication system. The multichannel SAR signal models of the micromotion target and the ground clutter in the raw data domain are established firstly. Then the generalized likelihood ratio test (GLRT) of the micromotion target is derived. Based on the analysis of the probability density functions of the test statistics, theoretical detection performance dependent on the micromotion parameters is provided. Simulated heterogeneous SAR data validate the effectiveness of the GLRT detector.
机译:这封信调查了多通道合成孔径雷达(SAR)-地面运动目标指示系统的微运动目标检测问题。首先建立了微运动目标和原始数据域中地面杂波的多通道SAR信号模型。然后得出微运动目标的广义似然比检验(GLRT)。基于对测试统计量的概率密度函数的分析,提供了取决于微运动参数的理论检测性能。模拟的异构SAR数据验证了GLRT检测器的有效性。

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