Universitat Rovira i Virgili. La universitat pública de Tarragona



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Departament de Química Física i Inorgànica



Research

Digital Signal Processing in Aerospace and Biomedical Environments (SPABE)


Formed by researchers of the Universitat Rovira i Virgili, SPABE collaborates with another similar groups of the same university, as well as, with groups of the "Université Libre de Bruxelles, ULB", the "Universitat de Barcelona, UB" and the "Universitat Politècnica de Catalunya, UPC". Also, SPABE is in close contact with the "Centro de Operaciones y Usuarios de Soporte de la Estación Espacial Internacional, E-USOC", and with the "Institut d’Estudis Espacials de Catalunya, IEEC".


The three main SPABE research lines are:

    • Digital signal processing of bioelectrical signal: The electrocardiogram, the electroencephalogram and the electrooculogram are investigated under altered gravity conditions (hypergravity and microgravity), because the heart, the brain and the ear are the sources of the most important physiological perturbations when the human body is under these conditions.
    • Digital signal processing of acceleration signals: SPABE aims to study and characterize in deep the accelerometric environment of different ESA thermodiffusion experiments carried out recently in the International Space Station using the free signals of acceleration downloaded from the NASA PIMS website. Second order digital signal processing techniques enable to initially characterize the spectral fingerprints of the corresponding long signals. Their non-linear behavior is treated using Higher Order Statistical Analysis, HOSA, techniques (bispectrum, trispectrum, quadratic and cubic phase couplings) and their stationary character is processed using the short time Fourier Transform, STFT.
    • Physical behavior of complex liquid systems under reduced gravity conditions: SPABE continue working on the impact of reduced gravity environments in diffusion and thermodiffusion liquid systems (binary and ternary mixtures). Additional efforts are also addressed on the computational treatment of the strong disturbances generated by the presence of free surfaces.


We are looking for candidates with good academic record to do doctoral theses
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