基于联合像素干涉统计特性的三通道动目标检测方法  

Detection of Three-channel Ground Moving Targets Using Statistical Properties of Joint Pixel Pairs Interferograms

作　　者：吕孝雷[1] 邢孟道[1] 潘月娥[2] 张守宏[1] 

机构地区：[1]西安电子科技大学雷达信号处理国家重点实验室,陕西西安710071 [2]西安电子科技大学计算机学院,陕西西安710071

出　　处：《电子学报》2008年第12期2319-2323,共5页Acta Electronica Sinica

基　　金：自然科学青年基金(No.60725103);"新世纪优秀人才支持计划"项目(No.NCET-06-0861)

摘　　要：本文提出了一种基于联合像素的三通道地面运动目标检测(GMTI)方法.首先分析联合像素处理后的两多视SAR图像干涉统计特性,建立幅相联合的概率统计模型,分析虚警和漏警,考虑到最小可检测速度内存在速度模糊,采用能量重心法解模糊,最后将干涉幅度和解模糊后的干涉相位联合检测动目标.实测数据处理结果验证了该方法的有效性.A new method based on joint pixel interfemgrams is proposed for three-channel ground moving target indication （GMTI）. Firstly, a joint probability statistical model is established using the statistical properties analysis of multilook SAR interfero- grams after joint pixel processing. Then the false and leak alarms are analyzed. Meanwhile, considering the velocity ambiguity in the range of minimum detectable velocity （MDV）, an energy center method is presented to resolve ambiguity. Lastly, the interferometric magnitude and unambiguous phase are jointed to detect moving targets. The validity of new detection method is demonstrated by the results from real data.

关 键 词：地面动目标检测(GMTI) SAR干涉统计特性 联合像素 最小可检测速度 速度模糊 

分 类 号：TN957[电子电信—信号与信息处理]