LFM Signal Parameter Estimation via FTD-FRFT in Impulse Noise

LFM signals are widely applied in radar, communication, sonar and many other fields. received by these systems contain a lot of noise outliers. In order to suppress the interference strong impulse on target realize accurate estimation signal parameters, echo need be filtered. this paper, solve problem poor performance parameter based fractional Fourier transform noise, alpha stable distribution is used establish mathematical model noise. The proposed fastest tracking differentiator with an adaptive factor estimate signals. experimental results show that has good filtering performance. It can effectively filter allows FrFT method parameters