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基于瞬时相位的BPSK信噪比估计算法

张晓勇 罗来源

张晓勇, 罗来源. 基于瞬时相位的BPSK信噪比估计算法[J]. 北京航空航天大学学报, 2011, 37(10): 1308-1311. doi: CNKI:11-2625/V.20111020.1126.001
引用本文: 张晓勇, 罗来源. 基于瞬时相位的BPSK信噪比估计算法[J]. 北京航空航天大学学报, 2011, 37(10): 1308-1311. doi: CNKI:11-2625/V.20111020.1126.001
Zhang Xiaoyong, Luo Laiyuan. Instantaneous phase based SNR estimation algorithm for BPSK signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(10): 1308-1311. doi: CNKI:11-2625/V.20111020.1126.001(in Chinese)
Citation: Zhang Xiaoyong, Luo Laiyuan. Instantaneous phase based SNR estimation algorithm for BPSK signals[J]. Journal of Beijing University of Aeronautics and Astronautics, 2011, 37(10): 1308-1311. doi: CNKI:11-2625/V.20111020.1126.001(in Chinese)

基于瞬时相位的BPSK信噪比估计算法

doi: CNKI:11-2625/V.20111020.1126.001
详细信息
    作者简介:

    张晓勇(1982-),男,江苏海安人,博士生,tianzxy@126.com.

  • 中图分类号: TN 911.7

Instantaneous phase based SNR estimation algorithm for BPSK signals

  • 摘要: 通过对加性高斯白噪声条件下正弦型信号瞬时相位分布情况进行研究,提出了一种新的BPSK(Binary Phase Shift Keying)信噪比估计方法.含噪信号瞬时相位的方差与信噪比之间存在近似线性的一一对应关系,以此为基础通过将含噪信号的估计方差与理论值相比较获得信噪比估计值.该方法直接对基带过采样信号进行处理,不需要事先进行符号定时与同步.使用计算机仿真测试了算法的估计性能,并与高阶累积量方法和子空间分解方法进行了比较,结果表明该算法具有更高的估计精度.

     

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出版历程
  • 收稿日期:  2010-06-20
  • 网络出版日期:  2011-10-30

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