Extraction of Laser Detection Signal of Ship Wake Flow Based on KICA

The laser detection of ship wake provides a novel method to home target for torpedo.But the backscattering optical signal of water constantly influences the detecting of backscattering optical signal of warship wake flow,because it is very close to the needed signal in frequency and stronger than the needed signal.A method based on blind source separation(BBS) is presented,and the kernel independent component analysis(KICA) is used in the detection of wake flow backscattering optical signal.The principle and algorithm are introduced and the simulation results show that KICA is more accurate than other traditional ICA algorithm in BBS.Finally this method is used to calculate the experiment data and the ship wake signal is gotten,which demonstrates the efficiency of this method.