Research of automatic gain control technology based on photomultipliers
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1.
91388 Unit, Chinese People's Liberation Army, Zhanjiang 524022, China;
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2.
Changjiang Wuhan Waterway Bureau, Wuhan 430014, China
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Received Date:
2014-05-20
Accepted Date:
2014-07-25
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Abstract
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.
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