When detecting underwater target by using laser,the useless backscattering envelope is much stronger than the useful target-reflected signal which makes signal detecting and processing very difficult.In terms of this problem,an adaptive interference canceling method use RLS algorithm has to be found to eliminate the useless backscattering envelope.Based on this method,we proposed a variable forgetting factor to measuring time-varying parameters.It increases the tracking performance in the non-stationary environment.By applying this method to measured data,the water backscattering noise can be effective eliminated and the object signal can be extracted,and has high tracking velocity,which is of much practical significance to underwater target detection.
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郭虎生,刘启忠,佟明宸,徐翔.激光水下探测光尾流回波信号提取方法的研究[J].激光与红外,2010,40(10):1048~1052 GUO Hu-sheng, LIU Qi-zhong, TONG Ming-chen, XU-Xiang. Study on laser underwater light of bubbles signal detections extraction technology[J]. LASER & INFRARED,2010,40(10):1048~1052