Table 1 The respiration and heartbeat signal model parameters
From: Vital sign sensing method based on EMD in terahertz band
Parameter | Value |
|---|---|
Carrier frequency fc | 240 GHz |
Fixed distance R0 | 50 m |
Respiration displacement r1 | 5 mm |
Heartbeat displacement r2 | 0.8 mm |
Respiration rate f1 | 0.23 Hz |
Heartbeat rate f2 | 1 Hz |
Heartbeat radius r | 0.25 m |
Heart rate shift Ï„ | 0 |
Time t | 30 s |
SNR | -13 dB |