一种抑制多模杂波的MTI滤波器设计

Design of MTI filters for Multi-mode Clutter Rejection

在雷达目标探测精度优化问题的研究中,雷达探测的性能,由于受目标环境中存在各种海浪、云雨等杂波,影响探测精度。传统的MTI滤波器存在滤除有用目标信号和滤波效率低的问题。为了解决传统滤波器所存在的问题,提出在滤波器设计中采用优化的参差时变算法和线性预测滤波算法相结合的混合滤波算法。与传统滤波算法相比,能够很好的克服盲速效应和提高滤波器性能。仿真和性能分析表明设计能够有效的提升滤波效果,具有较高的实用价值。

The filtering effect of the MTI filter will directly affect the performance of the radar. The MTI filter will filter out some target signals and the filtering efficiency is low. In order to solve the problems of traditional filter, this paper presented a combination of variable algorithm and the linear prediction filter algorithm in the optimization of the mixed hybrid filtering algorithm in the filter design. Compared with traditional filtering algorithm, it can well over- come the effect of blind speed and enhance filter performance. Simulation and performance analyses show that the de- sign can effectively enhance the filtering effect and has a high practical value.