Diversity transmitter/receiver

Details Diversity transmitter/receiver Diversity transmitter/receiver

1996-01-03

1997-06-03

Chin, Stephen

Pulse or digital communications

Repeaters

Testing

375267, 375299, 375347, H04K 100

Patent

active

056362420

ABSTRACT:
After coding transmission data by means of an error-correction coder, the data are divided into N branches, pass through a plurality of delay elements, undergo interleaving in an interleave circuit, primary modulation in a modulator, undergo spread-spectrum processing in a spread-spectrum circuit, and are coded/multiplexed in a synthesizer, and finally transmitted. The signals transmitted by the transmitter are divided into N branches by a branch circuit, undergo inverse spread-spectrum processing in inverse spread-spectrum circuits, undergo demodulation in a demodulator corresponding to the primary modulation on the transmission side, undergo de-interleaving at a de-interleave circuit, and after delay coordination at delay elements, undergo majority-discrimination at a majority-discrimination circuit, and finally are error corrected in an error-correction decoding circuit.

REFERENCES:
patent: 4881241 (1989-11-01), Pommier et al.
patent: 4943976 (1990-07-01), Ishigaki
"Combination of an Adaptive Array Antenna and a Canceller of Interference for Direct-Sequence Spread-Spectrum Multiple-Access System", R. Kohno et al., IEEE Journal, vol. 8, No. 4, May 1990 pp. 675-682.
Principles of Secure Communications Systems, 2nd Ed., Don J. Torrier, pp. 78-81; pp. 134-147.

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