| 基于OMP-SVD的多分量单频信号频率估计 |
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| 引用本文： | 曾小东,曾德国,张文超,祝俊.基于OMP-SVD的多分量单频信号频率估计[J].雷达科学与技术,2011,9(2):188-191. |
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| 作者姓名： | 曾小东 曾德国 张文超 祝俊 |
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| 作者单位： | 电子科技大学电子工程学院,四川,成都,611731 |
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| 摘 要： | 压缩感知(CS)是稀疏信号处理的有力工具。研究了多分量单频信号经过压缩采样以及信号重构后的频率估计问题。首先以一个随机高斯矩阵对信号进行观测测量,得到观测值;然后基于正交匹配追踪(OMP)和奇异值分解(SVD)算法,利用这些观测值对原信号进行高精度重构;最后利用重构中得到的非零元素的位置信息估计了原信号频率,并与基于Levinson-Durbin的AR参数模型频率估计算法进行了性能对比。仿真证明了算法能够高效重构原信号,并精确估计原信号频率。
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| 关 键 词： | 压缩感知 正交匹配追踪 奇异值分解 频率估计 |
Frequency Estimation of Multi-Component Single Frequency Signal Based on OMP-SVD |
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| ZENG Xiao-dong,ZENG De-guo,ZHANG Wen-chao,ZHU Jun.Frequency Estimation of Multi-Component Single Frequency Signal Based on OMP-SVD[J].Radar Science and Technology,2011,9(2):188-191. |
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| Authors: | ZENG Xiao-dong ZENG De-guo ZHANG Wen-chao ZHU Jun |
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| Affiliation: | ZENG Xiao-dong,ZENG De-guo,ZHANG Wen-chao,ZHU Jun(School of Electronic Engineering,University of Electronic Science and Technology of China,Chengdu 611731,China) |
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| Abstract: | Compressed sensing(CS) is a powerful tool for sparse signal processing.The frequencies estimation of multi-component single frequency signal after the compressed sampling and signal reconstruction is presented.First,a random Gaussian matrix is used to observe the signal,then the signal is reconstructed using the observations and frequencies are estimated from the locations of non-zero elements by orthogonal matching pursuit(OMP) algorithm combining with singular value decomposition(SVD).A comparative analys... |
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| Keywords: | compressed sensing orthogonal matching pursuit(OMP) singular value decomposition(SVD) frequency estimation |
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