窄带连续波干扰下的宽带接入网上行信道误码率研究

摘要

利用窄带连续波噪声特征函数模型建立了宽带接入网上行信道系统仿真模型,得到了窄带连续波噪声干扰下的宽带接入网上行信道QPSK系统误码率(BER)与载噪比(C/N)的关系曲线,并分析了系统模型的误码率仿真曲线.这些结果对分析宽带接入网上行信道系统的性能提供了有效的参考依据,并且为进一步设计实际应用系统提供了理论基础.%The system simulation model for broadband access network upstream channel based on characteristics function model of narrow band continuous wave is designed. The curves of bit error rate (BER) related to the carrier-to-noise ratio (C/N) are obtained in a QPSK modulated system based on the impact of narrow-band continuous wave interference on the broadband access network upstream channel. BER simulation curves of system model are analyzed. These results benefits for understanding the performance of NGB access network upstream channel system, and provide theoretical basis for further design of practical application system.