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一种SSB信号频域信噪比估计算法
引用本文:李妍,赵艳杰,李怀金.一种SSB信号频域信噪比估计算法[J].通信技术,2009,42(3):19-21.
作者姓名:李妍  赵艳杰  李怀金
作者单位:1. 解放军信息工程大学信息工程学院,河南,郑州,450002
2. 中国人民解放军65021部队,辽宁,沈阳,110162
摘    要:文中提出了一种在频域估计单边带(SSB)信号信噪比的算法,并给出了详细的理论分析。同时在同一系统模型中和现有几种典型的时域信噪比估计方法进行了比较,最后对算法进行了计算机仿真。结果表明,此方法估计精度高,性能稳定,从而说明了其有效性。而且,频域信噪比估计方法利用样点数少,实现非常简单,特别适合在突发通信系统中使用。

关 键 词:信噪比估计  频域  谱估计

An Algorithm of SNR Frequency-domain Estimation for SSB Signals
LI Yan,ZHAO Yan-Jie,LI Huai-Jin.An Algorithm of SNR Frequency-domain Estimation for SSB Signals[J].Communications Technology,2009,42(3):19-21.
Authors:LI Yan  ZHAO Yan-Jie  LI Huai-Jin
Affiliation:LI Yan, ZHAO Yan-Jie, LI Huai-Jin (1.Dept. of Communciation Engineering, Insitute of Information, PLA University of InformatiEngineering, Zhengzhou Henan 45002, China; 2.PLA Unit 65021, Shenyang Liaoning 110162 , China)
Abstract:This paper presents a new SNR estimation algorithm in frequency-domain for SSB signals. The theoretic analysis is also given. As compared with other methods in time-domain ,this method is proved very simple and robust. Monte Carlo simulation results show that the estimator bears high precision and the method is useful. Furthermore, a better estimation quality may be obtatined by using only smaller sampled data, and this method is especially suitable for short-term burst communication system.
Keywords:signal-noise-ratio (SNR)estimation: frequency-domain  spectral estimation
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