total attenuation

The ratio is proportional to the attenuation coefficient; Monte Carlo method is used to simulate lidar received signals.

通过对多次后向散射激光雷达接收信号的各级散射的分析，在高次散射接收信号与单次散射接收信号之间建立了一个简单的比例关系，即它们的比值与总衰减系数成比例；用蒙特卡罗方法对激光雷达接收信号进行了模拟。