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首页> 外文会议>Conference on Wireless and Mobile Communications Nov 12-15, 2001, Beijing, China >Design and implementation of receiver system for a wireless infrared communication link
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Design and implementation of receiver system for a wireless infrared communication link

机译：无线红外通信链路接收机系统的设计与实现

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摘要

This paper reports on the design considerations and implementations of construction of a receiver system for an infrared communication link using Light-Emitting-Diodes (LEDs). System configuration is non-directed line of sight (LOS) with single element receiver. The speed of the system constructed is 20 MHz (40 Mbps for on-off keying). In our design, the receiver consists of a multi-channel photo-detector array followed by multi-channels transimpedance amplifiers, a summer circuit for combining signals, low-pass filters(LPF) and high pass filters(HPF), and auto-gain control unit(AGC). The spectral match between photodiode and LED, looking angle of photodiode, rise time consideration of the photodiode, trade-off between transit rise time and photodiode effective area, etc, are also be discussed . A receiver module of speed response up to 20 MHz has been successfully constructed and the system is capable of receiving optical signal at a height of 2 m from the ceiling with coverage of a cell of 4 m in diameter.
机译：本文报告了有关使用发光二极管（LED）的红外通信链路的接收器系统的设计注意事项和构造。系统配置是带有单元件接收器的非定向视线（LOS）。构建的系统速度为20 MHz（开关键控为40 Mbps）。在我们的设计中，接收器由一个多通道光电检测器阵列，一个多通道跨阻放大器，一个用于合并信号的求和电路，低通滤波器（LPF）和高通滤波器（HPF）以及自动增益组成控制单元（AGC）。还讨论了光电二极管与LED之间的光谱匹配，光电二极管的视角，光电二极管的上升时间考虑因素，过渡上升时间与光电二极管有效面积之间的权衡等。已经成功构建了速度响应高达20 MHz的接收器模块，该系统能够在距离天花板2 m的高度接收直径为4 m的信元的光信号。

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