Chechotkin D. Spatial processing in aircraft radio engineering complexes under conditions of non-identity of aerials descriptions and general rotation of objects

The research object is the spatial processing of signal and hindrances in aircraft radio engineering complexes (AREC). The research purpose is the increase of protection from hindrances of AREC through the use of adaptive spatial signal processing (ASSP) in view of non-identity and irregularity of aircraft aerials directional descriptions (AADD) under conditions general rotation of aircraft. Methods of researches: mathematical statistics, probability theory, methods of optimization and theory of optimum reception of signals, methods of the adaptive signal processing, digital statistical design. Scientific novelty. 1) The mathematical model of the system of information interaction is got. This makes it possible to estimate probability of data exchange subject to dynamics of signals and hindrances in-flight. 2) The mathematical model of signals on the output of receiver aerial is improved. This makes it possible to allow aerials directional descriptions and placement location on aircraft, and general rotation of aircraft. 3) The method of estimation of quality indexes of the ASSP got further development. It allowed getting results for quality of adaptive processing in view of non-identity and irregularity of AADD under conditions general rotation of aircraft. 4) The complex method of the ASSP in view of non-identity and irregularity of AADD under conditions general rotation of aircraft is offered. It differs by the gravimetric sharing of information on an useful signal and direction of its arrival. The practical value of work consists of development of concrete engineering methods, algorithms and program tools for the account of influencing non-identity and irregularity of AADD and general rotation of aircraft on the quality indexes of functioning ASSP device. The results of dissertation research are used: in the Kharkiv university of Air Force; in the Scientific center of Air Force battle application. Sphere application: increase of protection from hindrances of AREC.