Feed forward spread spectrum signal processor

Details Feed forward spread spectrum signal processor Feed forward spread spectrum signal processor

1989-09-29

1990-10-09

Cangialosi, Salvatore

Pulse or digital communications

Repeaters

Testing

H04K 100

Patent

active

049625071

ABSTRACT:
A communications receiver for a code division multiple access (CDMA) satellite communication system in which a plurality of data carriers share the same band. A pilot carrier transmits a timing reference used by all receivers to acquire the clock used in timing the code generators, and used as a frequency and phase reference for data detection. This receiver employs a digital signal processor that detects a spread pilot carrier and uses the phase noise on the pilot carrier to subtract the communication link phase noise from the data carriers, thus allowing communication at lower signal-to-noise ratios.

REFERENCES:
patent: 4630283 (1986-12-01), Schiff

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