基于最优滤波理论的多普勒滤波器组设计  

Design of Doppler filter banks based on optimal filtering theory

作　　者：饶卿[1] 陈晨[1] 李赛辉[1] 王锐[1] RAO Qing;CHEN Chen;LI Sai-hui;WANG Rui(No.724 Research Institute of CSIC,Nanjing 211153)

机构地区：[1]中国船舶重工集团公司第七二四研究所

出　　处：《雷达与对抗》2019年第3期58-60,共3页Radar & ECM

摘　　要：为了提高MTD滤波器设计效率和性能,提出了一种基于最优滤波理论的多普勒滤波器组设计技术。该设计方法结合自适应阵列理论和最优滤波理论,根据使用设计要求在副瓣区放置干扰信号,迭代改变干扰信号的功率强度,从而自适应地控制滤波器频率响应的副瓣电平。优化的设计方法所得到的MTD滤波器不仅能在零频附近产生需要的零陷深度,且可以设置所有滤波器组副瓣区域阻带衰减,具有良好的工作环境适应性和工程应用性。MTD filter banks are designed based on the optimal filtering theory to improve its efficiency and performance.The sidelobe level of the frequency response of the filter can be adaptively controlled by placing interference signals in the sidelobe and changing the power intensity of interference signals iteratively by combining the adaptive array theory and the optimal filtering theory in line with the design requirements.The optimized MTD filter not only generates null depth near zero frequency,but also sets stopband attenuation in the sidelobe area of all filter banks,featuring favorable environmental adaptability and engineering application.

关 键 词：最优滤波 杂波抑制 多普勒滤波器组 

分 类 号：TN713[电子电信—电路与系统]