Lysechko V. Methods of forming ensembles of aggregate signals with the improved mutual correlation properties for radio communication systems with a code channel division

Object of research - - process of shaping ensembles of aggregate signals for asynchronous radio communication systems with a code channel separation. The purpose of probing - reduction of intrasystem handicapes in radio communication systems with a code channel separation due to use of aggregate signals with improved взаимокорреляционными properties on the basis of code sequences with the minimal power interaction. Methods of probing - methods of probability theory, a statistical communication science, the theory of sets and mathematical statistics. Practical value of the received results - the algorithm of shaping of ensembles of code sequences with a small cross correlation that allows to reduce a level of the maximal surges of side lobes of a cross-correlation function at 10-15 time at preset limitings in comparison with nonlinear signals, M - sequences and multiphase signals which are used in communication systems with a code channel separation is developed; algorithms of shaping of ensembles of aggregate signals are developed on the basis of code sequences with a small cross correlation that allow, in comparison with known algorithms of shaping, to lower on 5-15 % a level of intrasystem handicapes at magnifying at the order of volume of ensemble in comparison with nonlinear signals, M - sequences and multiphase signals under condition of power limitings; Program realization of algorithms of shaping of ensembles of code sequences with a small cross correlation and ensembles of aggregate signals with improved взаимокорреляционными properties on their basis is developed; practical recommendations are developed at the choice of parameters of the aggregate signals received on the basis of code sequences with a small cross correlation which allow to provide a preset level of intrasystem handicapes. Scientific novelty of the received results - the method of shaping of ensembles of code sequences for the first time is developed in view of their power properties which allows to form the big ensembles of aggregate signals for radio communication systems with a code channel separation and to lower a level of an interference; Has received the further development a method of shaping of ensembles of aggregate signals which differs from known extraction in an identical frequency band of identical sections of a spectrum of different code sequences of short video pulses with a small cross correlation that allows to lower a level of intrasystem handicapes at build-down the peak - factor; due to extraction of sections of a spectrum of code sequences with a small cross correlation in different areas of a frequency spectrum and subsequent their carry to preset area of frequencies that is difference from known methods, has received the further development a method of shaping of ensembles of aggregate signals with improved взаимокорреляционными properties and in the magnified volume. Results of dissertational work are realized - in a research work "Integracia - A" (the Kharkov national university of a radioelectronics), on manufacture at development of a data transmission equipment in НТ special design bureau "Polysvit" and CKKB "Proton".