2012•Unpublished venueRequires access

Design and Simulation of 2PSK Modem Based on Matlab and DSP Builder

Xin Ying Zhao

Abstract

Based on the principle of the modulation and demodulation of Binary Phase Shift Keying(2PSK),a mathematical model for the modulation and demodulation of the 2PSK was built and the carrier signal was designed using the technology of Direct Digital Synthesis(DDS).Based on Matlab/Fdatool and DSP Builder,a model to simulate the hardware circuit of the modulation and demodulation of 2PSK was built,and then analyzed by Matlab and Modelsim.The simulation results show that the design in this paper not only realizes the function of 2PSK modulator-demodu-lator very well,but also simplifies the hardware circuit and reduces the programming time.

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Key concepts: ModelSim, Demodulation, Computer science, MATLAB, Digital signal processing, Modulation (music), Computer hardware, SIGNAL (programming language)