Kiem N. Method of high-resolution imaging in the passive spatio-distributed radiometric systems

Research object - the process of spatio-temporal processing of radiometric signals in the aperture synthesis system; The research goal - optimization of spatio-temporal processing of stochastic radio-thermal UWB signals for the formation of radiometric images of spatially extended objects with high spatial resolution by developing methods, algorithms and block diagrams of radiometric systems; Research methods - methods of mathematical statistics, computer simulation and data processing; Practical value of results - results of synthesis of optimal algorithms for UWB radio-thermal fields and respective many-antenna systems of aperture synthesis can be used to create new and improve existing systems of astronomy remote sensing, meteorology, etc. Limiting the accuracy of estimates of the parameters and the potential fluctuation of sensitivity obtained with optimal synthesis algorithm can determine the limiting quality of developed radiometric systems, and form recommendations for selecting of optimal conditions for research, with which will be provided the maximum or allowable measurement accuracy. Method for analyzing of spectral sensitivity region can be used at the design stage of justification for the choice of geometries of antenna arrays for a given operating frequency bands; Novelty - first obtained ambiguity function of many-channels ultra wideband radiometric system of aperture synthesis with arbitrary number of antennas. First proposed and studied spectral method of filling area of spatial spectral sensitivity, which includes recount of temporal frequency signal in spatial frequency. Criterion of definition of ultrawideband radiometric systems of aperture synthesis is improved, which unlike from the known time takes into account both the frequency and the geometry of the array. The method of optimal formation of the radiometric images with many-antennas UWB radiometric system of aperture synthesis is received the further development; The degree of implementation - industrial; Sphere of application - remote sensing, radioastronomy, radiophysic.