Optical wireless communication receiving system

An optical wireless communication and receiving system technology, applied in the field of optical communication, can solve the problems of unstable, low, unreliable and safe signal transmission, and achieve the effects of easy popularization, high transmission rate, and elimination of baseline drift.

Inactive Publication Date: 2015-05-20
XIAN ZHONGKEMAITE ELECTRONICS TECH EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these did not fully consider the influence of baseline drift, voltage peak size, etc., which resulted in unstable, unreliable and low-security signal transmission.

Method used

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  • Optical wireless communication receiving system

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Embodiment Construction

[0016] Such as figure 1 As shown, the present invention includes a photoelectric detection module 1 for detecting an input optical signal and converting it into a corresponding weak current output signal, a preamplifier 2 for pre-amplifying the current transmitted by the photoelectric detection module 1 into a pre-amplified current signal, and Convert and amplify the amplified current transmitted by the preamplifier 2 into a main amplifier 3 of a voltage signal, the photodetection module 1, the preamplifier 2 and the main amplifier 3 are connected in sequence, and the output terminal of the main amplifier 3 is connected to the The voltage signal amplified by the main amplifier 3 is connected to the equalizer 4 that amplifies the frequency, and the output of the equalizer 4 is connected to the peak detection module 5 that detects the voltage peak value and the automatic gain control module 6 that can automatically adjust the signal gain. The preamplifier 2 is connected, and the...

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Abstract

The invention discloses an optical wireless communication receiving system comprising a photoelectric detection module, a preamplifier and a master amplifier connected in order. The output end of the master amplifier is connected with a balancer. The output end of the balancer is connected with the preamplifier through a peak detection module and an automatic gain control module. The output end of the balancer is connected with a base line recovery module. The base line recovery module is connected with a clock recovery circuit module through a time judger. The optical wireless communication receiving system has the advantages that base line drift can be eliminated, voltage peak during transmission can be detected in real time, signals can be transmitted reliably and safely, the structure is simple, no frequency resource limitation occurs, transmission rate is high, design is reasonable, practicality is high, service effect is good and the system is convenient to popularize and apply.

Description

technical field [0001] The invention relates to the technical field of optical communication, in particular to an optical wireless communication receiving system. Background technique [0002] With the progress and development of society, as well as people's increasing material and cultural needs, it is an inevitable development trend for optical communication to develop in the direction of large capacity and long distance. Optical communication technology is a communication method that uses light waves as the transmission medium. Since light waves have extremely high frequencies (about 300 million megahertz), that is to say, they have extremely high bandwidths, which can accommodate huge communication information, so light waves are used Communication as a carrier has been the goal that people have been pursuing for hundreds of years. The optical communication receiving system is generally used as a data transmission device. A traditional optical communication receiving sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04B10/50
Inventor 梁保华
Owner XIAN ZHONGKEMAITE ELECTRONICS TECH EQUIP
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