一、雨衰及雨衰对广播信号的影响由于降雨对电波产生的衰减,称为雨衰。当电波穿过降雨的区域时,雨滴会对电波产生吸收和散射,从而造成衰减。雨衰的大小和雨滴半径与波长之比值有关,而雨滴半径则与降雨率有关。根据实际测量结果,雨滴的半径约为0 025cm～0．3cm,对 C 波段来说,因波长在7．5cm 左右,远大干雨滴的半径．故雨 First, the impact of rain and rain attenuation on the broadcast signal attenuation due to rainfall on the radio waves, known as rain failure. When a radio wave passes through a raining area, the raindrop absorbs and scatters the electric wave, causing attenuation. The magnitude of the rain decay is related to the ratio of the radius of the raindrop to the wavelength, while the radius of the raindrop is related to the rate of rainfall. According to the actual measurement results, the radius of the raindrop is about 0 025cm ~ 0.3cm, for the C-band, due to the wavelength of about 7.5cm, the radius of the dry raindrops. So rain