| 基于自相关函数的信噪比估计方法 |
| |
| 引用本文： | 李银永,陈瑾,张玉明,李海城.基于自相关函数的信噪比估计方法[J].军事通信技术,2011(2). |
| |
| 作者姓名： | 李银永 陈瑾 张玉明 李海城 |
| |
| 作者单位： | 解放军理工大学通信工程学院研究生4队;解放军理工大学通信工程学院无线通信系; |
| |
| 摘 要： | 信噪比估计,作为衡量信道质量的标准,为许多自适应技术提供所需的信道信息。精确的信道质量估计值,可以有效提升这些技术的性能。研究表明,信号经过采样、发送波形成行后其自相关函数具有周期性。根据噪声和发送信号两者自相关函数的不同特性,提出一种利用自相关函数进行信噪比估计方法。仿真结果表明,该方法具有较高的估计精度。
|
| 关 键 词： | 信噪比估计 自相关函数 周期平稳 波形成形 |
Method for SNR Estimation Based on Autocorrelation Function |
| |
| LI Yin-yong,CHEN Jin,ZHANG Yu-ming,LI Hai-cheng.Method for SNR Estimation Based on Autocorrelation Function[J].Journal of Military Communications Technology,2011(2). |
| |
| Authors: | LI Yin-yong CHEN Jin ZHANG Yu-ming LI Hai-cheng |
| |
| Institution: | LI Yin-yong1,CHEN Jin2,ZHANG Yu-ming2,LI Hai-cheng1(1.Postgraduate Team 4 ICE,PLAUST,Nanjing 210007,China,2.Department of Radio Communication ICE,PLAUST) |
| |
| Abstract: | Signal-to-Noise Ratio(SNR) as the standard of channel quality provides channel information for many adaptive techniques.The exact channel quality can effectively improve the performance of these techniques.Generally,the signals are sampled and waveform shaped before sending,so its autocorrelation function is different from the noises'.Based on their different characteristics,we provide a method for SNR estimation using the autocorrelation function. Simulation results show that this method is more accurate t... |
| |
| Keywords: | SNR estimation autocorrelation function cyclostationarity waveform shaped |
| 本文献已被 CNKI 等数据库收录！ |
|
