Han Dahai, Fan Xing, Zhang Kai, Zhu Rui
State Key Laboratory of Information Photonics and Optical Communications (Beijing University of Posts and Telecommunications), Beijing, China.
Appl Opt. 2013 Aug 1;52(22):5516-22. doi: 10.1364/AO.52.005516.
A non-line-of-sight (NLOS) ultraviolet (UV) communication channel model is established by using a Monte Carlo simulation method based on photon tracing. This method considers the multiple-scattering effects of UV signal propagation in the atmosphere, and simulates the condition of dual receivers for diversity reception. The channel characteristics of the UV communication are obtained by simulating the photon arrival probabilities. The model is employed to study the characteristics of NLOS UV scattering channels for a variety of scattering conditions, including the separation distance between transmitter and receiver, transmit/receive elevation angle, beam divergence, and field of view. The model has advantages in reliable prediction of UV communication for the dual-receiver condition, as validated by outdoor experiments at fixed elevation angles.
基于光子追踪的蒙特卡罗模拟方法建立了一种非视距（NLOS）紫外（UV）通信信道模型。该方法考虑了紫外信号在大气中传播的多次散射效应，并模拟了双接收机分集接收的情况。通过模拟光子到达概率获得紫外通信的信道特性。该模型用于研究各种散射条件下非视距紫外散射信道的特性，包括发射机与接收机之间的分离距离、发射/接收仰角、波束发散和视场。如在固定仰角下的户外实验所验证的，该模型在双接收机条件下对紫外通信的可靠预测方面具有优势。
