Computer simulation and experiments for laser multi-pulse detection

Theoretical analysis of laser multi -pulse accumulation detection is carried. The quantitative relation of laser multi -pulse accumulation detection SNR with multi -pulse accumulation times is obtained under taking into the account of the all kinds of noise and its distributing characteristics. Computer simulation of laser multi-pulse accumulation detection study is performed and its result accords with the theoretical analysis. The experiment of laser multi-pulse accumulation detection is performed in the lab condition, and shows that the experimental results accord with the theoretical results very well at the less quantity of accumulation times, and the experimental results are less than the theoretical results clearly at the more quantity of accumulation times. The cause of the departure existence is studied and the solving method is presented. The SNR of laser detection can be improved effectively by the multi -pulse accumulation detection, and the weak signal can be detected from strong noise background by using the multi-pulse accumulation detection method.