Iee International Electronics and Engineering S.a.

Universite Du Luxembourg

Gabriel Tedgue Beltrao

Dimitri Tatarinov

Bhavani Shankar Mysore Rama Rao

Udo SCHRÖDER

Wallace Alves Martins

Mohammad Alaeekerahroodi

A method for vital sign monitoring using a radar sensor system that includes a transmitter, a receiver, and processing device. The transmitter irradiates a body region of a person with radar radiation, the receiver generates a receiver signal from reflected radiation from the body region, and the processing device generates, for each of a plurality of processing windows, a displacement signal based on the receiver signal. The displacement signal characterizes a body motion having, as oscillating motions, a breathing motion and a heartbeat motion, and calculates an estimated fundamental frequency for at least one oscillating motion. The processing device applies an adaptive Nonlinear Least Squares method to calculate a plurality of frequency estimates, each of which corresponds to one of a plurality of harmonics of a first oscillating motion, wherein the processing device calculates a first estimated fundamental frequency for the first oscillating motion based on the frequency estimates.

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Belvaux, Luxembourg

Gabriel Tedgue Beltrao