基于Phong模式的分裂Monte Carlo模拟红外室内信道脉冲响应函数

介绍了基于Phong模式的Monte Carlo方法.该方法能够对红外室内通信的重要性能参数—— 信道脉冲响应函数进行快速有效的计算，可应用于包括漫反射、镜面反射以及粗糙度介于这 两种反射之间的表面反射情形的信道中.相对于经典的有限元法，在高次反射时具有更为明 显的优势，不但计算速度快，而且计算结果也更接近真实信道环境.该方法的使用，能够为 设计高性能红外系统提供更为可靠的参数. 关键词： 红外室内通信 脉冲响应函数 分裂Monte Carlo Phong 模式

Split Monte Carlo for impulse responses on the infrared indoor channels on the basis of Phong's model

A split Monte Carlo (SMC) algorithm, based on the Phong's model, for the estimation of the impulse response on the infrared indoor channels is presented. It can be applied to the indoor channel including various reflection patterns, includi ng diffuse, mirror and other non_Lambert reflections.The simulation of the indoo r optical channel by SMC method based on the Phong's model can benefit significa ntly the design of high performance infrared systems. The calculation is much fa ster than the classical deterministic method, and the speed advantage is more ob vious at a large number of reflections.