大气信道简化单次散射模型研究

来源 :第四届全国信息光学与光子器件学术会议 | 被引量 : 0次 | 上传用户:wfdzdb
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  目前研究非直视日盲紫外光通信的单次散射模型通常采用椭球坐标系求解,求解过程中要对有效散射体的体积进行复杂的数值积分并确定三组积分限。为便于分析,本文使用近似表达式极大简化了已经被广泛使用的复杂单次散射信道模型,得出路径损耗是收发机几何结构与大气散射吸收系数的函数。对传输距离和路径损耗的仿真证明,该近似表达式与原始模型的所得结果非常吻合。利用该近似表达式,分别仿真分析了大气能见度对紫外光通信系统路径损耗和误码率的影响,仿真结果表明大气能见度并不是越高越好,而是在能见度约为1~2千米时紫外光通信系统有最佳的性能。
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