| 循环谱密度的两通道最大嫡谱估计 |
| |
| 引用本文： | 王成毅, 王宏禹. 循环谱密度的两通道最大嫡谱估计[J]. 电子与信息学报, 1999, 21(4): 461-466. |
| |
| 作者姓名： | 王成毅 王宏禹 |
| |
| 作者单位： | 大连理工大学电子与信息工程学院，大连理工大学电子与信息工程学院 大连 116024，大连 116024 |
| |
| 摘 要： | 对周期平稳随机过程的循环谱密度的估计,过去主要采用时域平均周期图法和频域平滑周期图法,但当短数据时,上述方法的分辨率很低,方差很大。本文提出了循环谱密度的两通道最大熵谱估计,该方法不仅具有很高的分辨率,而且估计的方差也很小,具有较好的估计性能。
|
| 关 键 词： | 周期平稳随机过程 循环谱密度 谱估计 多通道 最大熵谱估计 |
| 收稿时间： | 1997-11-14 |
| 修稿时间： | 1998-10-16 |
ESTIMATION OF CYCLIC SPECTRA USING TWO-CHANNEL COMPLEX MAXIMUM ENTROPY (AUTOREGRESSIVE) SPECTRAL ANALYSIS |
| |
| Wang Chengyi, Wang Hongyu. ESTIMATION OF CYCLIC SPECTRA USING TWO-CHANNEL COMPLEX MAXIMUM ENTROPY (AUTOREGRESSIVE) SPECTRAL ANALYSIS[J]. Journal of Electronics & Information Technology, 1999, 21(4): 461-466. |
| |
| Authors: | Wang Chengyi Wang Hongyu |
| |
| Affiliation: | School of Electron and Info. Eng.,Dalian University of Technology Dalian 116024 |
| |
| Abstract: | The main methods for estimation of cyclic spectra for cyclostationary processes are temporally smoothed cyclic periodogram and spectrally smoothed cyclic periodogram. In case of short record length, both methods have low resolution and reliability. This paper uses two-channel complex maximum entropy (autoregressive) spectral analysis method to estimate cyclic spectra. Fine performances such as resolution and reliability can be obtained with this method. |
| |
| Keywords: | Cyclostationary process Cyclic spectra Spectral estimation Multichannel Maximum entropy spectral analysis |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《电子与信息学报》浏览原始摘要信息 |
|
点击此处可从《电子与信息学报》下载全文 |
