室内可见光通信技术是基于白光发光二极管(LED)光源的无线光通信技术,在机场、医院等严格限制电磁干扰的场合可替代射频通信,应用前景广阔.鉴于室内可见光在传输过程中墙壁反射引起的多径效应对信号传输质量的影响,在4.0 m×4.0 m×2.8 m的房间内测量了室内可见光系统光源的光功率分布,结果表明光源的光信号经墙壁反射,会造成严重的多径效应,从而产生码间干扰.对室内可见光功率分布的仿真研究进行了实验验证,实验结果与理论仿真研究基本吻合.
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