| 摘要 |
PROBLEM TO BE SOLVED: To provide an optical CDMA(code division multiple access) system that adjusts the level of a signal outputted from each coder, so as to decrease the level difference between transmission data to be synthesized, thereby allowing a receiver side to correctly decode deceived data. SOLUTION: The optical CDMA transmission system is provided with coding means 21-23 that receive signals outputted from user terminals 11-13 through transmission channels 401-403 to transmit an optical CDMA signal to an optical transmission channel 310, output intensity control means 31-33 that control the intensity of optical signals outputted from the coding means 21-23, decoding means 261-263 that receive the optical CDMA signal from the optical transmission channel 310 to provide an output of the decoded signal, and a comparison processing means 281 that generates comparison information which compares the correlation intensity for each information communication terminal obtained from the decoding means 261-263 and informs the output intensity control means 31-33, corresponding to the signals decoded by the decoding means 261-263 about the comparison information. |
