Thesiss

Like most river deltas, Bangladesh represents a geographically small region with numerous criss-crossing rivers. The total number of rivers in Bangladesh exceeds 300 of which, 57 rivers are transboundary. Given the widespread unavailability of flow data across the entire river b…

Radio continuum emission has been demonstrated to be an excellent tracer of recent star formation, yet current understanding remains empirical, and is primarily based upon integrated multi-frequency or resolved mono-chromatic radio continuum studies. In this thesis, we gain furt…

Synthetic aperture interferometry (SAI) is a novel way of measuring aspherical optics (aspherics) where a scanning probe measures the optical path difference (OPD) between light reflected from the front (test) and rear (reference) surfaces of the aspheric optic. The surface form…

Synthetic aperture radar (SAR) is a type of radar capable of high-resolution coherent imaging. In order to produce coherent imagery from raw SAR data, an image formation algorithm is employed. The various image formation algorithms have strengths and weaknesses. As this work sho…

Radar interferometry is an important tool in remote sensing, where two receive antennas separated by a baseline are used to determine the three-dimensional position of reflectors. The research described in this dissertation extends the technology of radar interferometry in sever…

The Earth is rotating around its rotation axis in an irregular manner. The Earth rotation axis and its orientation in space vary with respect to the reference system (both the terrestrial and the celestial) due to the wide range of processes that contribute to the rotation excit…