DESIGN OF RECURSIVE MTI FILTER BASED ON THE GENETIC ALGORITHM
基于遗传算法的递归式MTI滤波器的设计

In theory, it is possible to synthesize any frequency response curve with the recursive MTI(Moving Target Indication) filters. As a result, the applied field of this kind of filter is wide. A new design method is presented to design flexibly a recursive MTI filter that can meet the specifications of the system. The method is based on the Genetic Algorithm(GA) and constitutes the fitness function with improvement factor, passband width and ripple of a filter. It speeds the search process and achieves near-global optimum parameters by means of the GA. Two kinds of classical recursive MTI filters are designed in this paper. The results demonstrate the validity of this design method that can design flexibly and quickly a required filter.