红外寻的方式的缺点是波长比无线电波短。因此,由于大气中的敏感粒子而产生衰减,使在阴雨、霾雾中使用受到限制。微波波段的无线电波具有全天候性能,随着战后雷达技术的发展,作为远程导弹制导用的媒介物而被采用,但它的频带在民间和军事上的利用是极混乱的。 The disadvantage of the infrared seek mode is that the wavelength is shorter than the radio wave. Therefore, due to the attenuation of sensitive particles in the atmosphere, so that in the rain, haze fog use is limited. Radio waves in the microwave band have all-weather performance. With the development of post-war radar technology, they have been adopted as a medium for long-range missile guidance. However, their frequency bands are extremely chaotic in civil and military use.