The paper presents the particularities of using a Doppler radar in the 24 GHz band for non-contact cardiopulmonary monitoring. To separate heart beat from respiration we looked for a pattern in time-frequency domain instead of trying to extract directly the distance from phase observation in the baseband signal. By selecting the proper components from the Gabor transform prior expansion we obtained good accuracy for heart beat and respiration rates. Also, with minor correction in frequency, the algorithm leads to usable heartbeat waveform, opening new doors for further information extraction.

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The paper is discussing some aspects of providing location in wireless ISM bands networks. Particularly, the focus is on precision time stamping of messages needed to compute the location based on the information about time difference of arrival of signal from a mobile node to multiple fixed nodes with known positions. After presenting the particularities of such networks that influence ranging, solutions are given to increase accuracy along with practical results. Also, the paper contains application extension to other networks regardless their protocols or carrier signal modulation.