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Research and Implementation of BPSK signal Demodulation based on Costas

Yanhua Liu

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Abstract

Carrier synchronization and demodulation is the key technology for communication system,and BPSK modulation is the most basic and most widely-used modulation.So the correct and fast demodulation becomes very important.This paper studies BPSK demodulation based on costas.QPSK signal could be regarded as two BPSK signals,its demodulation is not so difficult.The simulation of BPSK signal demodulation is done on simulink platform,and BPSK generation and simulation model of the carrier synchronous demodulation are also given in this paper.Simulation results show that the simulation model could correctly implement BPSK signal demodulation.

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What this paper is about

Carrier synchronization and demodulation is the key technology for communication system,and BPSK modulation is the most basic and most widely-used modulation.So the correct and fast demodulation becomes very important.This paper studies BPSK demodulation based on costas.QPSK signal could be regarded as two BPSK signals,its demodulation is not so difficult.The simulation of BPSK signal demodulation is done on simulink platform,and BPSK generation and simulation model of the carrier synchronous demodulation are also given in this paper.Simulation results show that the simulation model could correctly implement BPSK signal demodulation.

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Available abstract

Carrier synchronization and demodulation is the key technology for communication system,and BPSK modulation is the most basic and most widely-used modulation.So the correct and fast demodulation becomes very important.This paper studies BPSK demodulation based on costas.QPSK signal could be regarded as two BPSK signals,its demodulation is not so difficult.The simulation of BPSK signal demodulation is done on simulink platform,and BPSK generation and simulation model of the carrier synchronous demodulation are also given in this paper.Simulation results show that the simulation model could correctly implement BPSK signal demodulation.

Key concepts: Demodulation, Phase-shift keying, Computer science, Carrier recovery, SIGNAL (programming language), Synchronization (alternating current), Modulation (music), Electronic engineering

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