Underdetermined blind sorting of radar signals based on sparse component analysis

Due to the complexity of electromagnetic environment and the limitation of radar receivers, radar signals sorting in underdetermined case is a challenging task. After analyzing the applicability of the sparse component analysis (SCA) and the sparsity of intra-pulse modulation radar signals, an underdetermined blind sorting method based on the SCA for radar signals in time domain is presented in this paper. The experiments by intra-pulse modulation radar signals show that, compared to uselessness of traditional sorting methods, the algorithm is valid in some tough case.