| 基于CAFMS算法的正弦调频信号参数估计及性能分析 |
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| 引用本文： | 牛杰,姜卫东,程永强,黎湘,匡纲要.基于CAFMS算法的正弦调频信号参数估计及性能分析[J].电子学报,2012,40(7):1460-1464. |
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| 作者姓名： | 牛杰 姜卫东 程永强 黎湘 匡纲要 |
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| 作者单位： | 国防科技大学电子科学与工程学院,湖南长沙,410073 |
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| 基金项目： | 国家杰出青年基金，国家自然科学基金 |
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| 摘 要： | 文章提出了一种估计单分量正弦调频信号参数的新算法,详细分析并推导得到了调制指数与幅度两个参数的理论估计精度.仿真结果表明,在较高信噪比条件时(SNR>-3dB)论文所提算法的估计理论精度与仿真精度基本上是一致的.这说明了文章理论分析的正确性,也说明了论文所提算法的有效性和优越性.
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| 关 键 词： | 参数估计 正弦调频信号 循环自相关函数峰值搜索算法 调制指数 估计精度 |
| 收稿时间： | 2011-08-15 |
Parameters Estimation of a Sinusoidal FM Signal Based on Cyclic Autocorrelation Function Maximum Search Algorithm and Its Performance Analysis |
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| NIU Jie
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JIANG Wei-dong
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CHENG Yong-qiang
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LI Xiang
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KUANG Gang-yao.Parameters Estimation of a Sinusoidal FM Signal Based on Cyclic Autocorrelation Function Maximum Search Algorithm and Its Performance Analysis[J].Acta Electronica Sinica,2012,40(7):1460-1464. |
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| Authors: | NIU Jie JIANG Wei-dong CHENG Yong-qiang LI Xiang KUANG Gang-yao |
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| Affiliation: | (School of Electronic Science and Engineering,National University of Defense Technology,Changsha,Hunan 410073,China) |
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| Abstract: | This paper proposes a new algorithm that can be used for estimating the parameters of a sinusoidal frequency modulated(FM) signal.Asymptotic statistical results are derived for the modulation index and amplitude estimates.Simulation results show that the theoretical results are asymptotically optimal at the SNR above -3dB,which indicates the efficiency and superiority of the proposed algorithm as well as the exactness of the accuracy analysis. |
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| Keywords: | parameters estimation sinusoid FM signal cyclic autocorrelation function maximum search(CAFMS) algorithm modulation index estimation accuracy |
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