期刊名称：International Journal of Soft Computing & Engineering
电子版ISSN：2231-2307
出版年度：2015
卷号：5
期号：1
页码：64-68
出版社：International Journal of Soft Computing & Engineering
摘要：In the ECG signals P, QRS and T waves play an essential role. Various features of these waves provide significant information to diagnose most of the cardiac diseases after preprocessing of the ECG signal. In various features, RR-interval, QRS Duration, and QRS sample Characteristic are the feature, which reveals significant information about the physiological conditions of the patient. In the previous work to find the RR-interval Discrete Wavelet Transform (DWT) technique and by applying a thresholding to peak detection method has been used. The proposed work is totally digital system based to for detection of consecutive Rpeaks in time domain and in the form of sample index finally the RR-interval has been calculated with the help of Waveform Min Max VI and Search Waveform VI of LabVIEW. In the previous work to detect QRS characteristics LabVIEW mathscript tool and simple moving average filter etc. method has been used. This paper deals with a resourceful composite system which has been proposed for detection of Rpeak Index and QRS Duration. In the proposed work QRS characteristics has been extracted from Extract Portion of the Signal VI of LabVIEW for the standard MIT-BIH arrhythmia database. LabVIEW 2013 version provided by National Instruments has been used here to design the feature extractor.
