Visible light communication system based on spatial synthesis modulation and implementation method
A technology for visible light communication and space synthesis, applied in the field of visible light communication, can solve the problems of limited communication bandwidth of white LED lamps for general lighting, increase hardware cost and system complexity, and be unsuitable for ordinary indoor lighting systems, etc. The effect of low cost and high transmission rate
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[0027] The present invention will be further described below in conjunction with the accompanying drawings. It should be noted here that the descriptions of these embodiments are only used to help understanding of the present invention, and are not intended to limit the present invention.
[0028] like Figure 1 to Figure 5 As shown, the visible light communication system based on spatial modulation of the present invention includes two parts: a transmitter 1 and a receiving terminal 2; the transmitter is mainly composed of an information forward encoding module 10, a DC balance encoding module 11, a spatial synthesis modulation module 12 and an LED array The transmitting front end 13 is composed, and the receiving terminal mainly includes a photoelectric receiver 20 , a pre-AC coupling conditioning circuit 21 , an analog-to-digital conversion template 22 and a digital signal processing unit 23 . The information forward encoding module 10 is used to encode information to be s...
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