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| 基于正交冗余采样的超分辨信号谱估计 | |
| 引用本文： | 李阳, 戴博伟, 肖艳霞, 梁立万, 潘伟峰, 陈雅琴, 冯正和. 基于正交冗余采样的超分辨信号谱估计[J]. 电子与信息学报, 2002, 24(7): 865-871. |
| 作者姓名： | 李阳 戴博伟 肖艳霞 梁立万 潘伟峰 陈雅琴 冯正和 |
| 作者单位： | 1. 清华大学电子工程系微波与数字通信国家重点实验室北京,10084 2. 中国科学院电子学研究所,北京,100084 3. 北京航天航空大学自动控制系,北京,100083 |
| 基金项目： | 国家“866”项目(863-317-03-01-15-99)，国家自然科学基金(批准号:69871014) |
| 摘 要： | 该文提出了一种通过冗余采样进行信号谱估计的新方法,它充分利用冗余采样产生的频谱带限特性,通过对自相关矩阵进行秩1分解的方法来获得信号谱的超分辨估计,与 MUSIC、AR等其他超分辨方法相比,这种方法具有更低的信噪比门限和更高的分辨力。 |
| 关 键 词： | 谱估计 超分辨力 正交冗余采样 |
| 收稿时间： | 2000-09-25 |
| 修稿时间： | 2000-09-25 |
Super-resolution spectrum estimation based on orthogonal redundancy sampling |
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| Li Yang, Dai Bowei, Xiao Yanxia, Liang Liwan, Pan Weifeng, Chen Yaqin, Feng Zhenghe. Super-resolution spectrum estimation based on orthogonal redundancy sampling[J]. Journal of Electronics & Information Technology, 2002, 24(7): 865-871. | |
| Authors: | Li Yang Dai Bowei Xiao Yanxia Liang Liwan Pan Weifeng Chen Yaqin Feng Zhenghe |
| Affiliation: | State Key Lab. on Microwave & Digital Comm.,Tsinghua Univ., Beijing 100084 China;Institute of Electronics Chinese Academy of Sciences Beijing 100080 China;Dept. of Autom. Contl Beijing Univ. of Aeronaut. & Astronant., Beijing 100083 China |
| Abstract: | A novel method based on orthogonal redundancy sampling is proposed for har-monies estimation, which utilizes orthogonal redundancy sampling to obtain a signal with the information of its frequency range, and decomposes signal's auto-correlation matrix into the summation of rank-1 matrixes to estimate frequency of harmonics with the information. The results are compared with that of MUSIC and AR algorithms, and find that this method has a lower SNR threshold and higher range resolution. |
| Keywords: | Spectrum estimation Super-resolution Orthogonal redundancy sampling |
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