| 通信系统仿真中估计正弦信号信噪比的新方法 |
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| 引用本文： | 李思超,叶甜春,徐建华.通信系统仿真中估计正弦信号信噪比的新方法[J].电子测量技术,2009,32(3):56-59. |
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| 作者姓名： | 李思超 叶甜春 徐建华 |
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| 作者单位： | 1. 中国科学院微电子研究所,北京,100029
2. 杭州中科微电子有限公司,杭州,310053 |
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| 摘 要： | 正弦信号在通信系统中应用非常广泛,对其信噪比进行估计有着重要的意义,许多算法都需要以此获取最优性能。本文提出了在通信系统仿真中采用FFT估计正弦信号信噪比的新方法,并分析了信号频点数、采样率及量测时间对估计结果的影响。仿真结果表明,该方法能够正确地估计信噪比,通过合理的参数设置,误差均值可达0.3 dB以下。
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| 关 键 词： | 信噪比 FFT 信号频点数 采样率 量测时间 |
Novel method for estimating SNR of sine signal in communication system simulation |
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| Li Sichao,Ye Tianchun,Xu Jianhua.Novel method for estimating SNR of sine signal in communication system simulation[J].Electronic Measurement Technology,2009,32(3):56-59. |
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| Authors: | Li Sichao Ye Tianchun Xu Jianhua |
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| Affiliation: | 1.Institute of Microelectronics of Chinese Academy of Sciences;Beijing 100029;2.Hangzhou Zhongke Microelectronics Co.;Ltd;Hangzhou 310053 |
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| Abstract: | Sine signal has been widely used in communication system,so estimating its SNR is of great significance,and many algorithms require the SNR for optimal performance.This paper develops a novel method for evaluating SNR of sine signals in communication system simulation,in which FFT is applied,and analyzes the influence of number of frequency bins of signal,sampling rate and measurement time on the results.The simulation results show that the new method can estimate SNR correctly,and the average error could b... |
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| Keywords: | FFT |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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