Novel decision strategy for P wave detection utilising non-linearly synthesised ECG components and their enhanced pseudospectral resonances

Presents a novel, robust, patient-adaptive and potentially online P-wave detection decision strategy that is particularly well-suited to noisy ECG environments and that is highly effective with the abnormal atrial activations which can occur simultaneously with the QRS complex or the T-wave. Essentially, it is based on the exploitation of the unique structural properties of the raw and nonlinearly synthesised high-resolution pseudospectral multi-resonance signatures of the P-wave (or the entire PR interval including the P-wave), the QRS complex, and the combined S-T segment and T-wave. Clinical trials involving 59 healthy volunteers, equivalent to 1600 hours of ECG recordings, sampled at 500 Hz, have confirmed that most of the atrium and ventricle depolarisation-wave spectral energies (approximately 90%) are confined to two overlapping clusters inscribed by the top of the principal pseudospectral peaks (PPPs) and centred at 12 Hz and 15 Hz, respectively.