红外通讯系统设计比较

红外通讯以红外线作为通讯载

体，通过红外光在空中的传播来传

输数据，它由红外发射器和红外接

收器来完成。在发射端，发送的数

字信号经过适当的调制编码后，送

入电光变换电路，经红外发射管转

变为红外光脉冲发射到空中；在接

收端，红外接收器对接收到的红外

光脉冲进行光电变换，解调译码后

恢复出原信号。

红外通讯作为一种数据传输-Infrared communication system design compared to infrared communication infra-red as a communications carrier, through infrared light spread in the air to transmit data, it is by infrared transmitter and infrared receiver to complete. In the transmitter, sending the digital signal through an appropriate modulation coding, the transformation into the electro-optical circuit, the infrared emission tube into infrared light pulses launched into the air　in the receiver, infrared receiver infrared docking received light pulses to photovoltaic conversion, demodulation decoding recovery of the original signal. Infrared communications as a data transmission