Zherebyatyev D. Processing methods of dynamic scenes with non-stationary noise in radiotechnical tracking systems of extensive above-water object

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0408U002907

Applicant for

Specialization

  • 05.12.17 - Радіотехнічні та телевізійні системи

23-05-2008

Specialized Academic Board

Д 64.062.07

National Aerospace University "Kharkiv Aviation Institute"

Essay

Object of the research is detection and selection of extensive objects in radiotechnical systems. Aim of the dissertation is developing high-quality methods of detection, selection and parameters estimation of extensive objects, which are based on statistical optimization of space-time signals and dynamic scenes coprocessing in radiotechnical systems. Investigation methods are space-time statistical processing of the random signals and fields, pattern recognition theory based on neural network, mathematical modeling theory with computer technologies and real input data. Scientific novelty of the achieved results. 1) Novel space-time radiolocation signals processing method with running windows and wavelet transformation usage is proposed, results are increased extensive objects localization accuracy in complex dynamic environment and observed against non-stationary reflection form earth and sea. 2) Coordinates estimation method of the extensive objects with usage of a priory extension information is proposed, this method allows to increase performance and stability of large-tonnage ship coastal tracking raiotechnical system in Dnieper-Bug leman, c. Nikolaev.3) Novel effective algorithms of dynamic scene processing for parametric a priory uncertainty on electrophysical and geometrical objects characteristics are proposed, these algorithms allow to accomplish radiolocation tasks with limited time resources; 4) Novel moving extended object selection methods based on adaptive segmentation of dynamic scenes with neural network usage are proposed and developed, these methods allow to increase detection performance with object’s typical features of radiolocation images preservation in case of high impulse noise occurrence probability. Results application type - applied-research. The practical value of research consists in development of methods and algorithms of treatment of the radar-tracking information for providing of safety navigations. Results of dissertation work are introduced in system of a navigating complex “Liman” NE “Delta-lotsman” (с. Nikolaev), also will be used in the different systems navigation of the sea ships.

Files

Similar theses