The volatilization of filter is solved in simulation environment . four tracking filters are designed by altering the component of observe parameter to detect the effect of different compone nt . all four filters are evaluated in different position of fly envelop 本文采用不同的观测参数设计了四个跟踪滤波器,以检验不同观测参数对滤波性能的影响,在飞行包线不同位置对四个滤波器进行了评价。