In order to cope with the threat of dense coherent false targets of modern interferers,this paper takes linear FM radar against dexterous noise and C&I interference as the background.Firstly,a preliminary estimation method of interference parameters based on YOLOv5 for composite interference range-Doppler domain distribution feature extraction and interference recognition is proposed.Then,the Doppler parameters are accurately estimated by using the methods of feature region search and spectrum interpolation.The extracted accurate parameters are used to design Doppler filter banks to suppress the interference.Finally,the test statistic is constructed by using the suppressed signal,and the variance test is used to determine whether the Doppler filter weight needs to be updated for adaptive adjustment.The simulation results show that the proposed method can effectively suppress the interference in the environment of low SNR and multiple deception jamming.The study has reference significance for the suppression of dense false target interference.