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一种新的CDMA系统信干比估计方法 被引量:3

A Novel SIR Estimation Technique in CDMA Systems
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摘要 本文根据CDMA系统中解扩后基带信号的特点和基带信号模型 ,分析了基于QPSK调制的基带信号信噪比估计方法 ,提出了一种新的适用于CDMA解扩后基带信号的信干比估计方法 .计算机仿真结果表明 ,在低信干比情况下该方法较其他方法 。 According to the baseband signal model and features in Code Division Multiple Access(CDMA)communication systems,the paper analyzes SNR estimation techniques for Quadrature Phase Shift Keying (QPSK)modulations and proposes a novel SIR estimation technique for CDMA.The results of computer simulation show that the estimation creditability using this technique is higher than others in low SIR.
出处 《电子学报》 EI CAS CSCD 北大核心 2003年第10期1461-1464,共4页 Acta Electronica Sinica
基金 国家自然科学基金 (No .60 1 72 0 30 ) 华为科技基金〈3G视频通信技术框架和关键技术研究〉
关键词 码分多址 信干比 估计 CDMA SIR Estimation
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参考文献8

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共引文献5

同被引文献13

  • 1付文君,姜景山,王拴荣,刘思昱.QPSK数字接收机中的SNR估计的新方法[J].电子与信息学报,2007,29(2):255-259. 被引量:7
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  • 4YOON Young Shin,LEE Yong Hwan.Adaptive SIR Estimation in WCDMA Systems[C]//Proceedings of IEEE 55th Vehicular Technology Conference,Vol 1.May 6-9,2002,Birmingham,AL,USA.Piscataway,NJ,USA:IEEE,2002:275 -279.
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