| High Resolution Multipath Time Delay Estimation Based on FLOCCS-ESPRIT |
| |
| 引用本文： | LIU Wen-hong QIU Tian-shuang HU Ting-ting TANG Hong. High Resolution Multipath Time Delay Estimation Based on FLOCCS-ESPRIT[J]. 中国矿业大学学报(英文版), 2007, 17(1): 30-34. DOI: 10.1016/S1006-1266(07)60007-8 |
| |
| 作者姓名： | LIU Wen-hong QIU Tian-shuang HU Ting-ting TANG Hong |
| |
| 作者单位： | [1]School of Electronic and Information Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China [2]Department of Physics, Hainan Normal University , Haikou, Hainan 571158, China |
| |
| 基金项目： | 国家自然科学基金;海南省自然科学基金;海南省教育厅科研项目 |
| |
| 摘 要： | The non-Gaussian α-stable distribution is introduced to model impulsive noise. Based on the theory of fractional lower order statistics （FLOS）, the fractional lower order cross-covariance （FLOCC） sequence for two received signals is obtained and the fractional lower order cross-covariance spectrum （FLOCCS） can be approached by taking a Fourier transform for the FLOCC sequence. When the FLOCCS is treated as a sequence in the time domain, the problem of multipath time delay estimation （TDE） may be converted into one on multi-frequencies estimation or directions of arrival estimation. Accordingly, the high resolution multipath TDE can be realized with the ESPRIT technology. This idea on multipath TDE is referred to as FLOCCS-ESPRIT in this paper. Computer simulations show that this method has good performance both in a Gaussian noise and in an impulsive noise environment.
|
| 关 键 词： | α -stable distribution |
| 收稿时间： | 2006-08-17 |
| 修稿时间： | 2006-09-25 |
High Resolution Multipath Time Delay Estimation Based on FLOCCS-ESPRIT |
| |
| LIU Wen-hong,QIU Tian-shuang,HU Ting-ting,TANG Hong. High Resolution Multipath Time Delay Estimation Based on FLOCCS-ESPRIT[J]. Journal of China University of Mining and Technology, 2007, 17(1): 30-34. DOI: 10.1016/S1006-1266(07)60007-8 |
| |
| Authors: | LIU Wen-hong QIU Tian-shuang HU Ting-ting TANG Hong |
| |
| Affiliation: | 1. School of Electronic and Information Engineering, Dalian University of Technology, Dalian, Liaoning 116024, China;2. Department of Physics, Hainan Normal University, Haikou, Hainan 571158, China |
| |
| Abstract: | The non-Gaussian α-stable distribution is introduced to model impulsive noise. Based on the theory of fractional lower order statistics (FLOS), the fractional lower order cross-covariance (FLOCC) sequence for two received signals is obtained and the fractional lower order cross-covariance spectrum (FLOCCS) can be approached by taking a Fourier transform for the FLOCC sequence. When the FLOCCS is treated as a sequence in the time domain,the problem of multipath time delay estimation (TDE) may be converted into one on multi-frequencies estimation or directions of arrival estimation. Accordingly, the high resolution multipath TDE can be realized with the ESPRIT technology. This idea on multipath TDE is referred to as FLOCCS-ESPRIT in this paper. Computer simulations show that this method has good performance both in a Gaussian noise and in an impulsive noise environment. |
| |
| Keywords: | signal processing multipath time delay estimation FLOCC FLOCCS estimation signal parameter via rotational invariance techniques (ESPRIT) |
| 本文献已被 维普 万方数据 ScienceDirect 等数据库收录！ |
