Real Time Phaseless Filter with Delay Circuit and Its Application to Electrocardiograph
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概要
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This paper describes a new design technique of a real time phaseless filter, with analog filters and digital delay circuit, and its application to ECG recording.<BR>To suppress motion or respiratory artifacts in ECG, it is common to use analog high-pass filters, but considerable waveform distortion is caused by non-constant group delay. On the other hand, phaseless filters have zero phase and can realize higher order and sharp cut-off frequency high pass filters without phase distortion. The distortion of ECG waveform through analog and phaseless filters are computed and compared by computer simulation.
- 一般社団法人 日本生体医工学会の論文
一般社団法人 日本生体医工学会 | 論文
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