调频步进雷达自测速方法研究  

A Study on Velocity Measurement of Modulated Frequency Stepped Radar

作　　者：朱新国[1] 张凯[1] 

机构地区：[1]南京电子技术研究所,南京210039

出　　处：《现代雷达》2011年第4期53-57,共5页Modern Radar

摘　　要：提出一种基于一阶相位差分的调频步进雷达自测速方法,对其无模糊测速范围和测速精度进行了理论分析,从计算量和测速精度2个方面比较分析了一阶相位差分法、最小波形熵法和最小脉组误差法3种步进频自测速方法。仿真结果表明文中方法的测速精度优于最小波形熵法,与最小脉组误差法相当,且计算量小于后2种方法,也不存在最小脉组误差法对发射信号频率调制的特殊要求。A velocity measurement method based on 1st-order phase differential is presented for modulated frequency stepped radar,the unambiguous velocity range and measurement accuracy of this method is analysed theoretically.The method is compared with least waveform entropy method and least burst error method in computation complexity and measurement accuracy.The results of simulation verify that the accuracy of this method presented in this paper is higher than least waveform entropy method and approximately equal to least burst error method,the computation complexity is smaller than the latter two methods,and doesn＇t require special frequency modulation in least burst error method.

关 键 词：调频步进雷达 波形熵 脉组误差 相位差分法 

分 类 号：TN953[电子电信—信号与信息处理]