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Research on Blind Separation Technology for the Signal in the Receiver of LED Light Communication

Author: XuJuanJuan
Tutor: PuYan
School: Changchun University of Science and Technology
Course: Communication and Information System
Keywords: LED visible Code see interference OOK Blind Separation
CLC: TN929.1
Type: Master's thesis
Year: 2009
Downloads: 276
Quote: 2
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Abstract


The visible light communication technology is developed after a white LED invention and application of emerging wireless optical communication technology . LED indoor lighting can not only provide , but also can be applied to meet the demand for indoor personal network wireless optical communication system . The visible light communication will be provided to people safer , convenient communication environment . This article describes the LED visible light communication works , and indoor visible light channel and transmit OOK modulation technique end simulation . Inter-symbol interference generated by multipath effects , the mixed signal detected by the blind signal separation method of the visible light communication receiving end to be separated based on forward filter convolution mixed separation method , the two LED emitting light source the separation of the mixed light signal output and two receivers , to achieve the purpose of suppressing inter-symbol interference .

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Wireless communications > Lightwave communications, laser communications
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