【摘要】 利用小波变换模极大值对ECG信号进行奇异性检测,提取ECG信号P波、T波和QRS波群的特征点,具有定位准确,检出率高的特点。实验中选用Mexicanhat连续小波算法,应用MATLAB6.5对MIT-BIH心电数据库的数据进行处理,证实了算法的有效性和可靠性。更多还原

【Abstract】 In this paper, an algorithm with precise location and high detection rate is introduced. The modulus maxima of wavelet transform are applied to the singularity detection for ECG signal, and thus P wave, T wave and QRS waves can be well detected. Continuous wavelet transform with Mexican hat function is adopted to compute the modulus maxima under MATLAB6.5. The algorithm proves effective and reliable through the tests for the data form MIT-BIH database.更多还原