| 数字调制通信信号载波频率估计算法 |
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| 引用本文： | 冯祥,梁伟洋.数字调制通信信号载波频率估计算法[J].电讯技术,2006,46(1):105-107. |
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| 作者姓名： | 冯祥 梁伟洋 |
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| 作者单位： | 空军第一航空学院,河南,信阳,464000 |
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| 摘 要： | 应用修正的ESPRIT算法估计6种数字调制通信信号的载波频率，并且和其他两种算法的性能作了比较。仿真表明，在中等信噪比条件下，ESPRIT算法对载波频率的估计具有均值精确、方差小的特点，表现出较好的实用性和较强的稳健性。
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| 关 键 词： | 载波频率估计 ESPRIT算法 非合作通信 数字调制 |
| 文章编号： | 1001-893X（2006）01-0105-03 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2005-04-252005-11-25 |
Carrier Frequency Estimation Algorithms for Digital Modulated Signals |
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| FENG Xiang,LIANG Wei-yang.Carrier Frequency Estimation Algorithms for Digital Modulated Signals[J].Telecommunication Engineering,2006,46(1):105-107. |
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| Authors: | FENG Xiang LIANG Wei-yang |
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| Affiliation: | The First Aeronautic College of Air Force, Xinyang 464000, China |
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| Abstract: | A modified ESPRIT(estimating signal parameter via rotational invariance technique) algorithm is used to estimate the carrier frequency.Six modulation schemes of interest are considered.Computer simulations show that the modified ESPRIT algorithm is characterized by its high accuracy and low estimation variance,and it has the advantages over those available of robustness and practicability. |
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| Keywords: | carrier frequency estimation ESPRIT algorithm non - cooperative communication digital modulation |
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