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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.结果显示,1,2,3次散射起主要作用,随着总衰减系数的增大,高次散射对激光雷达接收信号的作用也越来越强.
By analyzing the scatterings at various levels of the received signals of multiple backscattering lidars, a simple proportional relationship between the received signals of the higher order scattering and the signals of the single scattering is established, ie their ratio is proportional to the total attenuation coefficient The signal received by lidar was simulated by Monte Carlo method. The results show that 1, 2 and 3 times scattering plays a major role. With the increase of the total attenuation coefficient, the effect of high-order scattering on the received signal of laser radar becomes stronger and stronger.