Abstract：A novel blind separation algorithm is proposed for cyclostationary signals. The hidden periodicity of cyclostationary signals is used and cyclic frequency in the algorithm is unknown. It is particularly suitable for the separation of cyclostationary signals. In this algorithm,the periodic components of the signal are extracted and the random components is removed,therefore,the effectiveness of the method and separation orders of cyclostationary signals are successfully verified by computer simulations and experiments.

Keyword：blind source separation;cyclostationarity;cyclostationary signals;blind signal extraction;source separation;