2008•Microcomputer InformationRequires access

Research of parallel Carrier Synchronization in High- speed all-digital demodulation

Hen J

Abstract

Carrier synchronization is a key part of demodulation systems. The purpose of this paper is to research the algorithm of car-rier synchronization in parallel demodulation system. Based on 320Mbps QPSK digital demodulator, the parallel structure and IF sam-pling are introduced. The parallel application of carrier synchronization is explained and analyzed in this paper. Moreover, the process of carrier recovery and demodulation system with parallel structure are simulated by computer, the performance of such digital demod-ulator and carrier recovery are shown by schemes.

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Key concepts: Demodulation, Carrier recovery, Computer science, Synchronization (alternating current), Process (computing), Carrier signal, Phase-shift keying, Computer hardware