SCIENTIFIC AND PRACTICAL IMPLEMENTATION OF METHODS FOR IMPROVING THE QUALITY OF COMPUTER-INTEGRATED INFORMATION SYSTEMS

Abstract

The practical realization of potential opportunities of computer-integrated information systems (CIIS) that are currently considerably higher than their real approachable technical characteristics is one of the main tasks of modern theory and practice of information systems. The following are some specific technical suggestions and methods for the physical implementation of a scientifically based adaptive nonlinear distortion compensation (ACNLD) algorithm. The insertion of artificial main and supportive entrances into the scheme of non-linear adaptive compensators allowed using the general theory of adaptive systems for their synthesis. The practical usage of synthesized following such a principle ACNLD according to the created recommendations allows to significantly increase the indices of quality of CIIS in the real conditions of their functioning, comparing with the already known ones. An additional advantage of proposed adaptive method of expansion of linear dynamic diapason (LDD) is an improvement of all-weather of CIIS and increasing of probability of identification of radio local maps of locality captured in different weather conditions without any additional changeovers. Except for this, a flexible reserve for the noise immunity of CIIS is being fulfilled that allows taking into consideration the possible improvements of means of radio electronic struggle. Synthesized ACNLD are considerably free from many drawbacks of linear determined means of expansion of dynamic diapason of radio receiving devices (RRD) and also they have simpler apparatus realization. Except, in a process of projection of ACNLD a considerably less volume of a priori information about the parameters of LDD is needed for the calculation of already known schemes of depression of non-linear distortions. The transferring functions of adaptive filters of ACNLD are quite quickly gather at the nonlinear transferring function of radio device (RD) provided that an effective convergence can be seen only with the presence of the inner noises at least unless they exceed the non-linear distortions by the level.