Fast simulation and modeling of scattering from targets in MIMO imaging systems

2022-5-11
Gül , Yunus Emre
The forward model analysis in a multiple input multiple output (MIMO) system requires the computation of the signals received by receiver antennas when various targets are illuminated by a transmitter antenna. The full wave analysis of such systems provides accurate results with high computational cost. Fast analysis of the system can be achieved by simple models based on several approximations which limits the accuracy. In this thesis, a modeling technique that provides better accuracy compared to simple models and achieves faster simulation time than full-wave analysis of the whole system is proposed. Full-wave simulation result of an isolated antenna is used as an input for this methodology. With the help of surface equivalence theorem and small dipole approximation, the incident field over the target and receiver antennas are found. MoM technique is employed to find scattered fields created by target due to this incident field. Finally, scattered field data is utilized in reaction theorem to compute the signal received by the receiver antenna.

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Citation Formats
Y. E. Gül, “Fast simulation and modeling of scattering from targets in MIMO imaging systems,” M.S. - Master of Science, Middle East Technical University, 2022.