| 心脏多普勒血流信号的自回归谱分析 |
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| 引用本文： | 张伊立,陈启敏,藏晓非,陈玲,钱蕴秋,黄枢. 心脏多普勒血流信号的自回归谱分析[J]. 陕西师范大学学报(自然科学版), 1990, 0(4) |
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| 作者姓名： | 张伊立 陈启敏 藏晓非 陈玲 钱蕴秋 黄枢 |
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| 作者单位： | 陕西师范大学应用声学研究所，陕西师范大学应用声学研究所，陕西师范大学应用声学研究所，陕西师范大学应用声学研究所，第四军医大学超声研究室，第四军医大学超声研究室 |
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| 摘 要： | 1 原理与方法自回归信号模型是一种仅含有反馈回路的递归结构的全极点模型,简称 AR 模型(Au(?)ore-gressiye Model).在本研究中,采用 Burg 法和 Marple 法确定模型的自回归系数α_k 以及予测误差功率.采用 FPF(最终订测误差)判据和信息论判据并结合心血管系统的生理特
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Autoregressive Spectral Analysis of Heart Doppler Blood Flow Signals |
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| Zhang Yili Chen Qimin Zang Xiaofei. Autoregressive Spectral Analysis of Heart Doppler Blood Flow Signals[J]. Journal of Shaanxi Normal University: Nat Sci Ed, 1990, 0(4) |
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| Authors: | Zhang Yili Chen Qimin Zang Xiaofei |
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| Affiliation: | Zhang Yili Chen Qimin Zang Xiaofei (Applied Acoustics Institute)Chen Ling Qian Yunqiu Huang Shu (Fourth Militery Medical University) |
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| Abstract: | Autoregressive dynamic power spectra of Doppler blood flow signals form both normal people and mitral stenosis patients are analysed by using a three order AR model.The results indicates that the autoregressive spectrum can provide three dimensional dynamic blood flow information with high resolution,compared with FFT method which has important diagnositic significance for mitral stenosis diseases. |
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| Keywords: | Doppler blood flow signals autoregressive dynamic power spectrum mitral stenosis |
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