海军航空工程学院学报2011，Vol.26Issue(5)：490-494,5.
一种信道系数服从高斯分布的8PSK信号信噪比盲估计算法
Blind SNR Estimation Algorithm for 8PSK Signal in the Channel of Gaussian Distribution Coefficients
田伟 1周新力 2孟庆萍3
作者信息
- 1. 海军航空工程学院训练部,山东烟台264001
- 2. 海军航空工程学院电子信息工程系,山东烟台264001
- 3. 海军航空工程学院研究生管理大队,山东烟台264001
- 折叠
摘要
Abstract
SNR is an important parameter to weigh communication system. A blind SNR estimation algorithm for 8PSK signal in the channel whose coefficients obey Gaussian distribution was proposed in allusion to the problem of requiring training sequence or channel coefficients being constant in the frame for traditional SNR estimating. The relationship was theoretically analyzed between the SNR of 8PSK modulation signal and observation value that numerically combined by real or imaginary part of the receiving signal, and its analytic expression was deduced by polynomial fitting and middle observation value normalizing. The numerical simulation indicated that the algorithm could achieve perfect SNR estimation effect for the SNR between 0 to 8dB.关键词
信噪比估计/衰落信道/数据拟合/高斯分布Key words
SNR estimation/fading channel/data fitting/Gaussian distribution分类
信息技术与安全科学引用本文复制引用
田伟,周新力,孟庆萍..一种信道系数服从高斯分布的8PSK信号信噪比盲估计算法[J].海军航空工程学院学报,2011,26(5):490-494,5.
