A new ECG data reduction method based on a double logarithmic quantisation of the ECG Walsh spectrum is presented. The proposed solution, theoretically justified by the decay characteristics of the spectrum energy content at high spectral index, is proved to be fast and efficient.
ECG data compression using double logarithmic quantisation of Walsh spectrum / E., Berti; Chiaraluce, Franco; N. E., Evans; J. J., Mckee. - In: ELECTRONICS LETTERS. - ISSN 0013-5194. - 31:(1995), pp. 1025-1026. [10.1049/el:19950712]