| 一类瞬态信号的时变滤波在诱发电位最优估计上的应用 |
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| 引用本文： | 史习智,许周桦,叶志华.一类瞬态信号的时变滤波在诱发电位最优估计上的应用[J].上海交通大学学报,1987(1). |
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| 作者姓名： | 史习智 许周桦 叶志华 |
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| 作者单位： | 上海交通大学动力机械工程系，上海交通大学动力机械工程系，上海交通大学动力机械工程系 |
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| 摘 要： | 本文研究了诱发电位等一类瞬态信号的最优估计问题。考虑到信号的时变特性,将维纳滤波的时不变特性修改为时变(f,t)滤波,使滤波过程具有自适应特、性。对仿真信号及豚鼠诱发电位波形的处理结果表明,在相同估计指标下,该方法能大大减少所需样本数目。
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| 关 键 词： | 时变滤波 瞬态信号 诱发电位估计 最优估计 |
Applicafion of Time-Varying Filtering of Transient Signals in Optimal Estimation of Evoked Potentials |
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| Shi Xizhi Xu Zhouhua Ye Zhihua.Applicafion of Time-Varying Filtering of Transient Signals in Optimal Estimation of Evoked Potentials[J].Journal of Shanghai Jiaotong University,1987(1). |
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| Authors: | Shi Xizhi Xu Zhouhua Ye Zhihua |
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| Institution: | Shi Xizhi Xu Zhouhua Ye Zhihua |
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| Abstract: | The optimal estimation of some transient signals such as evoked potentials isdiscussed in this paper.Taking the time-varying characteristic of the signals intoconsideration,the time-invariant characteristic of Wiener filtering is modified totime-varying(f,t),so that the filtering process has adaptive characteristics.Resultsfrom the processing of the simulation signal and the evoked potential waveform ofguinea pigs indicate that for the same estimation index,the suggested method canconsiderably reduce the number of samples. |
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| Keywords: | time varying filtering transient signal evoked potential estimation optimal estimation |
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