2010•Brno University of Technology Digital Library (Brno University of Technology)Open access

Feedback Compensation Algorithm for BPSK/QPSK Carrier Synchronization

Y. Liu, Cheng Tao

Abstract

This paper deals with carrier synchronization problem in coherent communication system, such as BPSK and QPSK. First, this paper surveys and analyzes currently existing carrier synchronization algorithms and relevant receiver structures. After an analysis of those methods, a novel algorithm called feedback compensation is proposed, including the receiver structures based on this new synchronization algorithm. This new algorithm can not only simplify the signal processing stage but also decouple the demodulator and carrier synchronization module. At last, FPGA implementation results are presented and discussed.

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Available abstract

Key concepts: Phase-shift keying, Demodulation, Synchronization (alternating current), Computer science, Compensation (psychology), Algorithm, Carrier recovery, Field-programmable gate array