In the paper the methods to process weak echo by using DSP technology based on low SNR of laser weak echo are presented. And the methods are simulated and calculated.

• 摘要文章针对激光弱小回波信号的低信噪比，提出了运用数字信号处理技术对回波信号进行处理的方法，并进行了一系列仿真和计算。