ISEL - Eng. Elect. Tel. Comp. - Dissertações de Mestrado
Permanent URI for this collection
Browse
Browsing ISEL - Eng. Elect. Tel. Comp. - Dissertações de Mestrado by Author "Albuquerque, Daniel"
Now showing 1 - 1 of 1
Results Per Page
Sort Options
- Study of physiological and structural variability in the acquisition of vital signs with Bio RadarPublication . Soares, Beatriz Lino; Pinho, Pedro; Albuquerque, Daniel; Gouveia, Carolina Teixeira de SousaThe monitoring of vital signals is usually carried out by sensors and electrodes. However, it may not be viable or the best solution for people with burn tissues or with more delicate skin, not to mention cases with infectious diseases, where contact should be kept to a minimum. Thus, vital signs monitoring using radar (Bio-Radar) has become a hot topic of research and development. Several studies state that there is variability in vital signs between people. However, in the Bio-Radar area, these issues have not been addressed. In this regard, this dissertation intends to verify if it is possible to evaluate the gender, age, Body Mass Index (BMI), and Chest Wall Perimeter (CWP) through the use of radar signals, namely Bio-Radar, used to the vital signs acquisition. In order to achieve this goal, the vital signs of 92 people (46 females and 46 males), aged between 18 and 50 years old were acquired. With this dataset, it was possible to develop a statistical study of relevant characteristics extracted from the signals. Later, three Machine Learning (ML) algorithms, namely Support Vector Machine (SVM), KNearest Neighbor (KNN) and Random Forest, were trained to identify gender, age, BMI and CWP. Finally, the relation between the respiratory amplitude and the respiratory rhythm is analyzed.