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    Please use this identifier to cite or link to this item: https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/81380

    Title: An Ultra-low Power Holter and Low Complexity Design Using Mixed Signal Processor
    Authors: Huang, Hsieh-Chang;Hsieh, Ching-Tang;Hsieh, Guang-Lin
    Contributors: 淡江大學電機工程學系暨研究所
    Keywords: Holter, ECG, HRV
    Date: 2012-11
    Issue Date: 2013-03-11 14:37:03 (UTC+8)
    Abstract: 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).
    Appears in Collections:[Graduate Institute & Department of Electrical Engineering] Proceeding

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