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...

Direction of arrival estimation LFM signal is an essential task in radar, sonar, acoustics and biomedical. In this paper, a short time Fourier transform multi-step knowledge aided iterative generalized minimum residual (STFT-MS-KAI-GMRES) approach presented to amend the angle measurement signal. A three stage algorithm proposed. First, process initiated with formulating for carrier frequency ch...