首页|Blind radar signal separation algorithm based on third-order degree of cyclostationarity criteria
Blind radar signal separation algorithm based on third-order degree of cyclostationarity criteria
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Separation and recognition of radar signals is the key function of modern radar reconnaissance,which is of great sig-nificance for electronic countermeasures and anti-countermea-sures.In order to improve the ability of separating mixed signals in complex electromagnetic environment,a blind source separa-tion algorithm based on degree of cyclostationarity(DCS)crite-rion is constructed in this paper.Firstly,the DCS criterion is con-structed by using the cyclic spectrum theory.Then the algo-rithm flow of blind source separation is designed based on DCS criterion.At the same time,Givens matrix is constructed to make the blind source separation algorithm suitable for multiple sig-nals with different cyclostationary frequencies.The feasibility of this method is further proved.The theoretical and simulation results show that the algorithm can effectively separate and re-cognize common multi-radar signals.
blind signal separationcyclostationary frequencyGivens matrixdegree of cyclostationarity(DCS)blind source separation algorithm
FAN Xiangyu、LIU Bin、DONG Danna、CHEN You、WANG Yuancheng
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Bomber and Transport Aircraft Pilots Conversion Department,Air Force Harbin Flying College,Harbin 150088,China
College of Joint Operations,National Defense University,Beijing 100091,China
College of Aeronautical Engineering,Air Force Engineering University,Xi'an 710038,China
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