Estimation of Breathing Rate with Confidence Interval Using Single-Channel CW Radar

Table 2

Breathing rate estimation using the proposed method as well as the reference value and that of the FFT-based method (estimated, actual, and FFT) bpm, for three subjects in three different postures, namely, lying down, sitting, and standing.

	Lying down	Sitting	Standing
Subject 1 (36, 160 cm, 70 kg)	(15.85, 15.60, 16.68)	(16.77, 15.68, 18.52)	(14.73, 16.03, 23.78)
Subject 2 (24, 155 cm, 50 kg)	(13.88, 14.42, 13.78)	(14.63, 15.01, 15.19)	(15.10, 15.23, 19.14)
Subject 3 (22, 164 cm, 60 kg)	(14.67, 13.67, 14.36)	(13.94, 14.15, 14.38)	(15.20, 14.26, 18.38)