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首页> 外文会议>International Conference on Instrumentation Measurement, Computer, Communication and Control >Demodulation of Low SNR QPSK Signal Based on Chaotic Synchronization
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Demodulation of Low SNR QPSK Signal Based on Chaotic Synchronization

机译：基于混沌同步的低SNR QPSK信号解调

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摘要

Signal restoration utilizing chaotic synchronization can resist strong noise and it can make signal demodulation more easy in low SNR channel. In this paper, BPSK signal restoration is introduced and a new QPSK signal demodulation based on chaotic synchronization which is used to restore QPSK signal to increase SNR is put forward. The characteristic of QPSK signal in chaotic synchronization is analyzed and two path systems is brought in to deal with the complexity of QPSK signal. Then a global design of new QPSK signal demodulation is set up and finally it is proved through simulation and compared with the traditional coherent demodulation.
机译：利用混沌同步的信号恢复可以抵抗强噪声，并且可以在低SNR通道中更轻松地进行信号解调。本文介绍了BPSK信号恢复方法，提出了一种基于混沌同步的QPSK信号解调方法，用于恢复QPSK信号，提高信噪比。分析了混沌同步中QPSK信号的特性，引入了两种路径系统来处理QPSK信号的复杂性。然后建立了新的QPSK信号解调的总体设计，最后通过仿真进行了验证，并与传统的相干解调进行了比较。

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