Automaic Recognition of Intra-Pulse Modulation Type of Radar Signal Based on SVD
Xu-Zhou Zhang · Electronic Information Warfare Technology · 2011
Aiming at the problem of low correct recognition rate to the modulation types of intra-pulse radar signal with common methods,an effective automatic recognition method of intra-pulse modulation types is put forward.Firstly,it calculates Ambiguity Function(AF) of radar signal,and then uses image processing algorithm to extract its singular value.The singular value vector is used as the input eigenvector of ANN to identify the intra-pulse modulation types automatically.The simulation results show that the correct recognition rate is more than 84% to common intra-pulse radar signal in the 0dB SNR.It is of fewer dimension of the character vectors,simple structure of classifiers,high correct recognition rate and isn't sensitive to noise.