Human Breathing Rate Estimation from Radar Returns Using Harmonically Related Filters

Table 2

Error reduction of our proposed methods versus the conventional SSP-FFT algorithm for all distances and postures using PN-UWB and PM-CW radars.

Algorithm/radar	PN-UWB	PM-CW
FFT + comb	83.5%	78.8%
FFT + moving windows	80.3%	81.7%
FFT + sum squares	80.3%	79.2%