Real-time FPGA-based detrending of ECG signals using wavelet filtering

The problem of detrending the baseline noise on ECG signals particularly Normal Sinusal type is presented in this paper. A real time FPGA-based system is implemented using Wavelet filtering. For the filter design the Daubechies family is used and the implementation uses 4th order and 6 levels of decomposition. The filtered signals obtained detrending various ECG signals are compared with ideal values from simulation with satisfactory results.