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홍성호,김영섭,이명석,노학엽,지용석 한국반도체디스플레이기술학회 2012 반도체디스플레이기술학회지 Vol.11 No.3
In order to analyze the ECG, it is important to pinpoint the repeat interval of the ECG. In this paper, we present an efficient algorithm for finding the QRS complex on the ECG. We escaped from the conventional methods to go through multiple steps of preprocessing to make ECG easier to find the QRS complex. We selected the candidate peak that has the possibility of the QRS complex in original ECG, and used technique to find the QRS complex among the candidate peak. In this way, we could get similar efficiency to Pan & Tompkins Algorithm that is most representative QRS complex detection algorithm, just used fewer operations than Pan & Tompkins Algorithm.
오원현(W.H Oh),유창훈(C.H. Yoo),신은철(E.C. Shin),박성민(S.M. Park),노학엽(H.Y. Noh),유지윤(J.Y. Yoo) 전력전자학회 2003 전력전자학술대회 논문집 Vol.2003 No.7(2)
Hysteresis controllers are intrinsically robust to system parameters, exhibit very high dynamic response and are suitable for simple implementation But the current control using a conventional hysteresis controller has the disadvantage that high switching frequency may happen due to lack of coordination among individual hysteresis controllers of three phases This will of course increase the switching loss in addition, the current error IS not strictly limited So, In this paper to reduce the switching frequency, a double band hysteresis current contioller is proposed The presented control system was tested with digital simulation in the Borland C++ program and demonstrate the advantage of proposed hysteresis current controller