DOI: 10.1109/TMTT.2025.3570603   IEEEXplore: https://ieeexplore.ieee.org/document/11039716

Dual radar noise compensation system for UAV-born cardiopulmonary vital signs detection.

24 GHz

Arctangent-demodulated platform motion reference signals are used to enable accurate recovery of respiration displacement. A dual radar noise cancellation (DRNC) system employs adaptive noise cancellation (ANC) and net signal interference cancellation (NIC) for precise motion compensation. This is the first known application of arctangent demodulation for ANC motion reference, and the first UAV flight using DRNC to measure human respiration rate and displacement with high accuracy at the time this article was written.

UAV-born biosensors for post-disaster assessment, UAV-born doppler radar

<1% motion frequency error, <10% respiration displacement error; the respiration displacement error was a fraction of 1 mm, even in the presence of a platform motion that exceeded 100 mm.