Optical code demultiplexing/multiplexing sending and receiving method and device based on electric domain encoding/decoding
A transmission method and coding and decoding technology are applied in the receiving method and device, and the field of optical code division multiplexing transmission, which can solve the problems of increasing system complexity and cost, and achieve the effects of eliminating multiple access interference and eliminating beat noise.
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[0064] An optical code division multiplexing transmission system based on electrical domain coding and decoding is mainly composed of an optical code division multiplexing transmitting device based on electrical domain coding and decoding and at least one optical code division multiplexing receiving device based on electrical domain coding and decoding.
[0065] The above-mentioned optical code division multiplexing transmission device based on electrical codec, such as figure 1 As shown, it is mainly composed of a programmable logic device encoder with n input terminals and L output terminals, a light source, L optical modulators, L optical circulators, L fiber gratings, and optical couplers. Each of the n input terminals of the programmable logic device encoder is connected with one user signal. In the present invention, the programmable logic device encoder such as figure 2 As shown, there are mainly n multipliers, n serial-to-parallel converters, and L adders. The two i...
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