The parameters design method of recursive MTI filter based on pole-zero analyses

Shaping for pass band is a kind of feature of the recursive MTI filter, and design of second order recursive MTI filter for the recursive MTI filter possesses of typical significance. This paper analyzes the effect of filter parameters on second order recursive MTI filter characteristic by pole-zero analyses method, and discusses the relation between filter parameters and improvement factor, or flatness in pass band, or filter notch, or normalized clutter spectrum width. A method for the design of feedforward and feedback parameters is given. The computer simulations show that the frequency response characteristic is extremely good and the clutter can be effectively suppressed.