User's Manual

4
1. Working principle
The radar transmits the 24G frequency band millimeter wave
signal, the electromagnetic wave signal reflected by the measured
target, and performs demodulation processing at the transmitting
signal, and then proceeds through the amplification, filtering,
ADC, etc., to obtain the echo demodulation signal data.
The amplitude, frequency and phase of the echo signal are
calculated in the MCU unit, and finally realize the target
parameters (breathing, motion, micromotion, etc.) measurement and
scene evaluation.
2. Hardware design considerations
The rated power supply voltage of the radar shall meet 4.9-6V,
with a rated current of over 200mA under normal operation.Power
design, power ripple requires ≤ 100mv.