We get rules of the attenuation of fog, cloud, haze and atmosphere as the height changes, and give the calculation formula of the laser scattering character of cloud layer.
推导了雾、霾、云、大气的衰减随高度变化的规律，给出了云层激光回波特性的计算公式。
2
When radar signals propagate in the atmosphere, the absorption and scattering of air molecule, aerosol particles, dust and cloud, fog and rain result in energy attenuation of ladar signals.