2010•Spacecraft EngineeringRequires access

Simulation of Direct Sequence Spread Spectrum Communication System Based on Simulink

Haifeng Yu

Abstract

The spread spectrum signal source for testing the performance of satellite communication system must have the self-check function.To provide the reference mode to the self-check program’s design of spread spectrum signal source,the simulation model of direct sequence spread spectrum communication system has been built by using Simulink provided by MATLAB.Sliding correlation acquisition scheme and one-non-coherent delay-lock tracking loop are adopted to implement the synchronization of PN code.The result shows that the simulated system can recover the transmitted signal correctly.

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Key concepts: Spread spectrum, Direct-sequence spread spectrum, Computer science, SIGNAL (programming language), Pseudorandom noise, MATLAB, Synchronization (alternating current), Code (set theory)