合成宽带距离像的数学模型分析  

Research of the mathematic model of synthetic range profile

作　　者：陈跃斌[1] 彭卫[2] 范菁[1] 高飞[1] 

机构地区：[1]云南民族大学电气信息工程学院,云南昆明650031 [2]四川农业大学商学院,四川都江堰611830

出　　处：《通信学报》2010年第12期111-116,共6页Journal on Communications

基　　金：国家自然科学基金资助项目(60963026);云南省精品课程(通信原理)基金资助项目~~

摘　　要：推导出任意合成宽带波形下目标回波的通用模型,并分析了引起合成距离像失真的原因。基于分析结果,提出了一种新的合成距离像失真分析方法和误差评估准则。同时,从理论上讨论了运动目标特性与被提出误差评估准则之间的关系。仿真结果证实了理论分析的准确性。The general model of target echo signal was derived for any synthetic wideband waveforms,and some reasons causing the distortion of synthetic range profile were analyzed.A novel method and a new criterion were proposed based on the results.At the same time,the relationship between a moving target＇s characteristic and the proposed criterion is theoretically evaluated in detail.Simulation results show that the analysis conclusions are accurate.

关 键 词：合成距离像 目标频率响应采样值 IDFT 调制系数 合成距离像失真评估准则 

分 类 号：TN955[电子电信—信号与信息处理]