Stichting Imec Nederland

Ilde Rosa Lorato

Marco Mercuri

A method for localization and monitoring of living being targets in an environment comprise: transmitting () a sequence of radio frequency waveforms, the waveforms being a continuous-wave waveform modulated in frequency and/or phase; detecting () a sequence of reflected waveforms being reflected by a target and Doppler-shifted due to a movement of the target, forming () a sequence of waveform transforms, wherein the waveform transform comprises discretized information in a plurality of range bins, and wherein the information in a single range bin corresponds to reflections occurring at a specific sector in the environment; analyzing () information for a single specific sector in a sub-sequence of the sequence of waveform transforms, and determining () movement of a target in the specific sector based on the waveform transform information for that specific sector during a time period corresponding to the sub-sequence.

Method and a system for localization and monitoring of living being targets

A method for detecting a vital sign of a subject () comprises: receiving () a reflected radio frequency signal from the subject (), the reflected signal being based on a transmitted signal, which is Doppler-shifted due to mechanical movements corresponding to the heart rate and/or the respiratory rate; dividing () a baseband signal into a sequence of sliding windows (), each sliding window () representing a time interval; estimating () a vital sign parameter in at least one sliding window (); determining () whether a vital sign parameter may be reliably estimated in at least one sliding window (); on condition that the vital sign parameter may not be reliably estimated in a sliding window (), determining () a vital sign parameter of the sliding window () based on vital sign parameters estimated in a plurality of windows representing time intervals close to the time interval of the window ().

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Leuven, Belgium

Ilde Rosa Lorato