| 循环相关符号率盲估计算法的快速实现 |
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| 引用本文： | 王甲峰,叶江峰,张健.循环相关符号率盲估计算法的快速实现[J].太赫兹科学与电子信息学报,2011,9(1):60-63. |
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| 作者姓名： | 王甲峰 叶江峰 张健 |
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| 作者单位： | 中国工程物理研究院电子工程研究所,四川,绵阳,621900 |
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| 基金项目： | 中国工程物理研究院科学技术发展基金资助项目(2009B0403043) |
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| 摘 要： | 介绍了几种常用的符号率盲估计方法,简单回顾了基于循环相关符号率盲估计的基本算法,在此基础上,通过理论分析提出一种基于循环相关符号率盲估计的快速实现方法。该方法利用FFT运算代替循环频率遍历搜索,计算量分析表明,与基本算法相比,快速算法大幅度降低了计算量,仿真结果验证了该算法的有效性。最后,对算法中存在的问题进行了分析并给出了解决方法。
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| 关 键 词： | 循环相关 符号率 盲估计 |
| 收稿时间： | 2010/3/30 0:00:00 |
| 修稿时间： | 2010/8/9 0:00:00 |
Fast realization of cyclic correlation based symbol rate blind estimation |
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| WANG Jia-feng,YE Jiang-feng and ZHANG Jian.Fast realization of cyclic correlation based symbol rate blind estimation[J].Journal of Terahertz Science and Electronic Information Technology,2011,9(1):60-63. |
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| Authors: | WANG Jia-feng YE Jiang-feng and ZHANG Jian |
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| Affiliation: | WANG Jia-feng,YE Jiang-feng,ZHANG Jian(Institute of Electronic Engineering,China Academic of Engineering Physics,Sichuan Mianyang 621900,China) |
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| Abstract: | Some methods of symbol rate blind estimation are introduced.And the basic method based on the cyclic correlation is briefly reviewed.A fast realization method of symbol rate blind estimation based on the cyclic correlation is proposed through theoretic analysis.The method adopts FFT instead of the cyclic frequency scanning.The analysis of the calculation amount shows that the new method is faster than the basic one.Simulation results validate the method.Finally,the defects of the method are analyzed and the... |
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| Keywords: | cyclic correlation symbol rate blind estimation |
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