Spread spectrum communication system

Multiplex communications – Communication over free space – Combining or distributing information via code word channels...

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375200, 375206, H04B 7216

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active

059663774

ABSTRACT:
Low rate data and middle rate data are time division multiplexed independently according to their rates by a time division multiplexer so that their rates match the rate of high rate data which are not passed through the time division multiplexer. Subsequently, the entire data are converted into biorthogonal signals by biorthogonal signal generators (BORTs), and code division multiplexed by a code division multiplexer. The code division multiplexed signal undergoes modulation by a spreading modulator and a carrier modulator, and transmitted.

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