PhD thesis defense to be held on October 31, 2025, at 16:00 (via Zoom)
Thesis title: Development of methods to increase the detectability of low electromagnetic visibility flying vehicles
Abstract: The thesis focuses on the development of new methods for the detection of aircraft with a very low active scattering surface. The methods studied are:
(a) Exploitation of passive low-frequency emission methods (10Hz - 10kHz) related to the movement of electrons in the gases ejected from aircraft turbine engines.
(b) Use of microwave radiometry in the entire UHF to THz spectrum which is completely passive.
(c) Exploitation of radar signals operating in the 100-300MHz range which is based on the exploitation of the backscatter from the “fuselage” of the exhaust gases of an aircraft and exploits the resonance phenomenon from this scatterer.
In all cases the effort is based on the exploitation of the “plasma” properties of the exhaust gases whose properties arise from measurements of other works. While method (a) is based on experimental measurements and an attempt to discover these signals using machine learning methods, for methods (b) and (c) theoretical electromagnetic scattering methods have been developed that demonstrate the possibility of detecting aircraft with a very small active scattering surface.
Supervisor: Professor Panayiotis Frangos
PhD Student: Thomas Chatziathanasiou