Spreizband-Signalprozessor mit Vorwärtsregelung

摘要

A communications receiver for a code division multiple access (CDMA) satellite communication system is disclosed 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.