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Patient's condition in operation theaters (OTs), postoperative ICUs and critical care units (CCUs) is continuously monitored for the vital parameters such as pulse rate, oxygen saturation, breathing rate, blood pressure and others. For monitoring patients, not only in these units as well as in special situations such as cardiopulmonary and sleep disorder investigations, the breath related activity...
High data rate wireless communication system introduces the unavoidable inter symbol interference (ISI), for which orthogonal frequency division multiplexing (OFDM) gives a best solution by utilizing the property of orthogonality among the sub carriers. In addition, estimating the channel characteristics under non-linear time varying random channel environment, is always a tough task for a successful...
Extraction of respiratory activity from physiological signals having respiratory influence such as pulse oximeter's photoplethysmographic (PPG) signals would be an alternative under clinical settings to all the direct methods of recording respiratory signals such as spirometry, pneumotachometry or capnography. In this paper, we propose an effective method, based on multi scale independent component...
Respiratory signal is usually recorded with techniques like spirometry, pneumography or whole body plethysmography. These techniques require the use of cumbersome devices that may interfere with natural breathing, unmanageable in certain applications such as ambulatory monitoring, stress testing, and sleep studies. Infact, the joint study of cardiac and pulmonary systems is of great interest in most...
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