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    题名: An Ultra-low Power Holter and Low Complexity Design Using Mixed Signal Processor
    作者: Huang, Hsieh-Chang;Hsieh, Ching-Tang;Hsieh, Guang-Lin
    贡献者: 淡江大學電機工程學系暨研究所
    关键词: Holter, ECG, HRV
    日期: 2012-11
    上传时间: 2013-03-11 14:37:03 (UTC+8)
    摘要: An ultra-low power, portable, and easily implemented Holter recorder is necessary for patients or researchers of electrocardiogram (ECG). Such a Holter recorder with off-the-shelf components is realized with mixed signal processor (MSP) in this paper. To decrease the complexity of analog circuits and the interference of 60 Hz noise from power line, we use the MSP to implement a finite impulse response (FIR) filter which is equiripple design. We also integrate the ring buffer for the input samples and the symmetrical characteristic of the FIR filter for efficiently computing convolution. The experimental results show that the ECG output signal with the PQRST feature is easy to be distinguished. This ECG signal is recorded for 24 hours using a SD card. Furthermore, the ECG signal is transmitted with a smartphone via Bluetooth to decrease the burden of the Holter recorder. As a result, this paper uses the Lomb method for the spectral analysis of Heart Rate Variability (HRV) better than Fast Fourier Transform (FFT).
    显示于类别:[電機工程學系暨研究所] 會議論文

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