CAJ | 학술논문

为了压缩水下无线光通信系统中接收光信号的动态范围、提高有效通信距离，从自动增益控制技术的基础理论入手，利用光电倍增管增益可随工作电压改变的特性，设计出基于光电倍增管实现的自动增益控制电路，其数字控制部分以单片机为核心，并在空气中模拟水下实验。结果表明，该电路可以对接收光信号实现40dB的压缩，提高了水下无线光通信的有效范围。
위료압축수하무선광통신계통중접수광신호적동태범위、제고유효통신거리，종자동증익공제기술적기출이론입수，이용광전배증관증익가수공작전압개변적특성，설계출기우광전배증관실현적자동증익공제전로，기수자공제부분이단편궤위핵심，병재공기중모의수하실험。결과표명，해전로가이대접수광신호실현40dB적압축，제고료수하무선광통신적유효범위。
In order to compress the dynamic range of the received optical signal in an underwater optical wireless communication system and increase the effective distance of communication , automatic gain control circuit based on variable gain photomultipliers was designed from the basic theory of automatic gain control technology .Single chip microcomputer was the core of the digital control part .The underwater experiment was imitated in the air .The results show that the dynamic range of received optical signal is compressed for 40dB and the effective range of underwater wireless optical communication is improved .