Abstract
Electrocardiogram (ECG) signal processing systems must consider various levels of noise/artifacts and develop the techniques
to deal with wide range of noise situations. The authors develop a method based two functions (Wigner and Wavelet),
highlighting the importance of selecting one of these functions for signal processing in real-time or off-line case. Making use of
virtual instrumentation, it was showed that Wigner function can be appropriate for real time monitoring and for mobile devices,
using microcontrollers with small resources for data processing.