一种新的基于遗传算法的滑动参差MTI滤波器设计  

Novel slipping stagger MTI filter design based on genetic algorithm

作　　者：汪莉君[1] 陶海红[1] 罗丰[1] 吴顺君[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

出　　处：《电波科学学报》2005年第4期517-521,共5页Chinese Journal of Radio Science

基　　金："十五"预研项目(413070508);西安电子科技大学硕士点基金(04004)

摘　　要：提出一种新的基于遗传算法的滑动参差MTI滤波器优化设计。采用滑动脉冲的方式进行MTI滤波器设计,并利用遗传算法搜索最优参差码,有利于检测陷在滤波器第一零点里的弱目标。同时该滤波器可形成多个凹口以滤去多种杂波,并将盲速推到三倍音速以外。由于采用遗传算法对参差码进行搜索,使运算量大大减少。仿真结果和性能分析验证了算法的可行性和有效性。A novel slipping stagger MTI filter design based on the genetic algorithm （GA） is presented. The filter is designed by slipping pulses and the optimal stagger code is selected by GA, so the weak target in first notch can be detected. Multimodel clutters can be rejected by the slipping stagger MTI filter, and blind-velocity can be appeared out of three times velocity of sound. To decrease the computation, the genetic algorithm has been taken to search stagger code. The simulation and performance analysis demonstrate the feasibility and validity of this algorithm.

关 键 词：遗传算法 滑动参差MTI 最优参差码 第一零点 

分 类 号：TN957.51[电子电信—信号与信息处理]