| 基于有限域搜索的MUSIC法快速频率估计 |
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| 引用本文： | 蒋毅,古天祥. 基于有限域搜索的MUSIC法快速频率估计[J]. 仪器仪表学报, 2006, 27(11): 1526-1528 |
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| 作者姓名： | 蒋毅 古天祥 |
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| 作者单位： | 电子科技大学自动化学院测控系,成都,610054 |
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| 摘 要： | MUSIC法是现代信号高精度频率估计的一种重要方法，但它需要在整个频域内进行搜索，严重影响了其实时性应用。本文深入分析了FFT算法与MUSIC算法的特点，利用FFT算法对信号成分频率进行预估计，缩小搜索域，再利用MUSIC方法进行频率细化，通过仿真研究，这种方法能有效提高信号的处理速度，从而加强了MUSIC算法的应用。
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| 关 键 词： | 谱估计 |
| 修稿时间： | 2005-07-01 |
Quick frequency estimation based on MUSIC algorithm |
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| Jiang Yi,Gu Tianxiang. Quick frequency estimation based on MUSIC algorithm[J]. Chinese Journal of Scientific Instrument, 2006, 27(11): 1526-1528 |
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| Authors: | Jiang Yi Gu Tianxiang |
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| Abstract: | MUSIC algorithm is an important frequency estimate method in modern signal processing.But,it requires searching in the whole frequency range,which limits its real-time applications.In this paper the characteristics of FFT and MUSIC algorithms are analyzed,and a proposal is given that uses FFT algorithm to pre-estimate the component frequencies of a signal,then uses MUSIC algorithm to complete the frequen- cy search.Simulation results show that the proposed method reduces the processing time of MUSIC algo- rithm greatly. |
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| Keywords: | FFT MUSIC |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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