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    Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/63177


    Title: 應用於智慧生活與照護之節能感測網路---子計畫四:適應性生理信號感測系統之超低功耗類比前端與信號處理電路之設計( I );Ultra Low Power Analog Front End and Signal Processing Circuits Design for Adaptive Biomedical Sensing System (I)
    Authors: 薛木添
    Contributors: 國立中央大學電機工程學系
    Keywords: 電子電機工程;護理學
    Date: 2013-12-01
    Issue Date: 2014-03-17 14:20:55 (UTC+8)
    Publisher: 行政院國家科學委員會
    Abstract: 研究期間:10205~10304;This subproject mainly develops ultra-low power biosignal detection systems that consist of analog amplification, filters, digitalization and signal processing. The system architecture is composed of multi-biosignals amplifiers, a sigma-delta data converter, and signal processing circuits. Detected by identical sensors, various biodignals, such as ECG or blood pressure, can be amplified to compatible with maximum input range of following filters through different amplification mechanism. After filtering out-of-band noise, the signals go into a data converter. Outputs of digitalization are sent to the smart sensor controller for data integration, control, and access. It is noticed that electrodes mismatch, process, temperature, and supply voltage (PVT) all causes the gain and frequency variations, respectively. Therefore, tunable frequency is required to make sure the complete signal without distortions. In this subproject, it is proposed to develop an adaptive algorithm of sampled biosignals, which provides self-adjustments for different biosignals, tunable cutoff frequency for the smart sensor management. Certainly, it can overcome poor performances caused from PVT variations.
    Relation: 財團法人國家實驗研究院科技政策研究與資訊中心
    Appears in Collections:[電機工程學系] 研究計畫

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