Time-frequency analysis in Doppler radar for noncontact cardiopulmonary monitoring
The paper presents a method for non-contact cardiopulmonary monitoring by using a Doppler radar in the 24 GHz band. Instead of trying to extract directly the distance from phase observation in the baseband signal, we looked for a pattern in time-frequency domain. Using the Gabor transform, component...
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| Zusammenfassung: | The paper presents a method for non-contact cardiopulmonary monitoring by using a Doppler radar in the 24 GHz band. Instead of trying to extract directly the distance from phase observation in the baseband signal, we looked for a pattern in time-frequency domain. Using the Gabor transform, component selection, and Gabor expansion we get good data accuracy in the extracted vital signs even if the patient didn't stand still and moved with large amplitudes. |
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