【摘要】 利用日盲区紫外波段的光在大气中的传输特性来进行通信可以有效地解决实现抗干扰非视距近距离通信这一难题。介绍了紫外光通信系统的技术构成以及工作方式和原理,并分析了大气对紫外光通信的影响。由于大气中臭氧吸收日盲区(200-300 nm)的紫外辐射,用日盲区的紫外波段进行通信可以使通信不受到太阳光的干扰,紫外光是利用它的散射特性来进行通信的,是一种新颖的通信模式。也正是它的散射特性使它可以绕过障碍物,克服其他自由空间光通信必须工作在可视距方式的弱点,实现近距离通信。更多还原

【Abstract】 Using the propagation characteristics of sun-blind UV spectrum in atmosphere to communicate, a jamproof non-line-of-sight communication can be achieved. UV communication is introduced including its composing, working method and principle. Influences of atmospheric characteristics on the UV communication are analyzed. Because of the absorption of ozonosphere existing in higher level atmosphere, the sun-blind-region ultraviolet radiation(200-300 nm) of solar spectrum could hardly reach the surface of the earth. Therefore, the communication system using this spectral coverage could hardly be disturbed by sunshine. UV communication is based on the scattering characteristics that can make it pass around the bars, overcome the weakness that the other free space optical communication must work on line-of-sight conditions and achieve short-rang communication.更多还原