| 基于a参数平均的AR谱估计在心率变异性研究中的应用 |
| |
| 引用本文： | 彭勇征,陈孝桢,宁新宝.基于a参数平均的AR谱估计在心率变异性研究中的应用[J].数据采集与处理,2002,17(1):117-120. |
| |
| 作者姓名： | 彭勇征 陈孝桢 宁新宝 |
| |
| 作者单位： | 南京大学电子科学与工程系,南京,210093 |
| |
| 摘 要： | 利用α参数平均的AR估计法分析研究心率变异性信号的AR谱。分析结果表明，这种方法（特别是在低信噪比场合）能够明显改善了HRV信号AR谱的测频性能。
|
| 关 键 词： | Burg算法 α参数平均 心电图 心率变异性 AR谱估计 |
| 文章编号： | 1004-9037(2002)01-0117-04 |
| 修稿时间： | 2001年4月4日 |
Average a Coefficient Approach to AR Spectrum Estimation and Its Application to HRV Signal |
| |
| Peng Yongzheng Chen Xiaozhen Ning Xinbao.Average a Coefficient Approach to AR Spectrum Estimation and Its Application to HRV Signal[J].Journal of Data Acquisition & Processing,2002,17(1):117-120. |
| |
| Authors: | Peng Yongzheng Chen Xiaozhen Ning Xinbao |
| |
| Abstract: | The AR spectrum of HRV signal can be used to appraise the activity of pneumogastric nerve and sympathetic nerve,so precise drawing of it is of great importance to clinical doctor. For the reason of frequency error and spectral line splitting of Burg's method,a new method is needed to estimate the AR spectrum of HRV signal especially in low signal-to-noise ratio case. This paper analyzes an average a coefficient approach to AR spectrum estimation, and applies it to AR spectrum estimation of HRV signal. It finds that the proposed approach greatly improve the performance of the AR spectrum of HRV signal, especially in low signal-to-noise ratio case. |
| |
| Keywords: | HRV signal periodogram Burg method frequency error average a coefficient |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
