Golang, Dsp, Heartbeat, Fast Fourier Transform, Grafana.
we in our example only care about heart rates between 30 BMP (0.5Hz)and 70 bpm (1.2Hz). If we then look at the final signal it looks like below. Normalized signal after low and high pass filters 3. R-peak detection Detecting the heart-beats is as simple as doing a peak detection on the signal. In