| 一种高分辨率谱估计与数据外推的快速算法 |
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| 引用本文： | 潘明海,刘永坦,赵淑清,徐佳祥,干恒富. 一种高分辨率谱估计与数据外推的快速算法[J]. 系统工程与电子技术, 2000, 22(12): 9-10 |
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| 作者姓名： | 潘明海 刘永坦 赵淑清 徐佳祥 干恒富 |
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| 作者单位： | 1. 哈尔滨工业大学,150001
2. 空空导弹研究院,洛阳 471009 |
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| 摘 要： | 利用信号频谱幅度分布的先验信息,对短时数据序列信号提出了一种实现高分辨率谱估计和数据序列外推的快速算法。该算法利用了算子矩阵的特殊结构,采用简单、快速的矩阵求逆算法,使算法的运算量和数据存储容量大幅度下降。给出了算法在高分辨率谱估计及数据序列外推中的应用实例和仿真结果,证实了该算法的优良性能。
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| 关 键 词： | 数字信号处理 高分辨率 谱分析 算法 |
| 文章编号： | 1001-506X(2000)12-0009-02 |
| 修稿时间： | 1999-12-22 |
A Fast Algorithm of High-Resolution Spectral Estimation and Data Sequences Extrapolation |
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| Pan Minghai,LIU Yongtan,Zhao Shuqing,Xu Jiaxiang,Gan Hengfu. A Fast Algorithm of High-Resolution Spectral Estimation and Data Sequences Extrapolation[J]. System Engineering and Electronics, 2000, 22(12): 9-10 |
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| Authors: | Pan Minghai LIU Yongtan Zhao Shuqing Xu Jiaxiang Gan Hengfu |
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| Abstract: | In this paper, a fast algorithm of high-resolution spectral estimation and data sequences extrapolation for short-time data sequences is proposed by using the prior distribution of spectral amplitudes. This algorithm which computes the inversion of operator matrix is simple and fast based on the special structure of operator matrix. The computational load and the number of data memory units of the algorithm can be efficiently reduced. The paper also gives out the application examples and computer simulation results that demonstrate the excellent performance of high-resolution spectral estimation and data sequences extrapolation |
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| Keywords: | Digital signal processing High resolution Spectrum analysis Algorithm |
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