https://ir.lib.vntu.edu.ua//handle/123456789/2208 монографії, книги та ін. 2026-04-05T15:35:23Z https://ir.lib.vntu.edu.ua//handle/123456789/31300 Matrix Models of Cryptographic Transformations of Video Images Transmitted From Aerial-Mobile Robotic Systems Krasilenko, V. G.; Lazarev, A. A.; Nikitovich, D. V.; Красиленко, В. Г.; Лазарєв, О. О.; Нікітович, Д. В. In this chapter, the authors consider the need and relevance of cryptographic transformation of images and video files that are transmitted from unmanned aircraft, airborne robots. The authors propose and consider new multifunctional matrix-algebraic models of cryptographic image transformations, the variety of matrix models, including block parametrical and matrix affine permutation ciphers. The authors show the advantages of the cryptographic models, such as adaptability to various formats, multi-functionality, ease of implementation on matrix parallel structures, interchangeability of iterative procedures and matrix exponentiation modulo, ease of selection, and control of cryptographic transformation parameters. The simulation results of the proposed algorithms and procedures for the direct and inverse transformation of images with the aim of masking them during transmission are demonstrated and discussed in this chapter. The authors evaluate the effectiveness and implementation reliability of matrix-algebraic models of cryptographic image transformations. 2020-01-01T00:00:00Z https://ir.lib.vntu.edu.ua//handle/123456789/31044 The block parametric matrix affine-permutation ciphers (BP_MAPCs) with isomorphic representations and their research Krasilenko, V. G.; Lazarev, A. A.; Nikitovich, D. V.; Красиленко, В. Г.; Лазарєв, О. О.; Нікітович, Д. В. First, we will give a brief overview of the proposed multifunctional block parametric MAPSs, their subspecies of vector affine permutation ciphers (VAPSs), and show that to achieve the goal it is advisable to use the isomorphism of various representations of permutations (matrices or vectors), which act as the main and block-wise, vector matrix keys. Modeling confirms the adequacy of the proposed block parametric ciphers (MAPS) with isomorphic representations of the MP of significant dimensions and blocks and their good characteristics, their advantages, including increased stability and enhanced functionality. The processes of crypto-transformations, generation of MP, main MP and turn-key processes, their advantages are clearly shown by a number of model experiments. The models are simple, convenient, adapted for multi-format and color images, implemented by matrix processors, have high efficiency, stability, and speed. 2020-01-01T00:00:00Z https://ir.lib.vntu.edu.ua//handle/123456789/30871 Design and Simulation of Array Cells of Mixed Sensor Processors for Intensity Transformation and Analog-Digital Coding in Machine Vision Krasilenko, V. G.; Lazarev, A. A.; Nikitovich, D. V.; Красиленко, В. Г.; Лазарєв, О. О.; Нікітович, Д. В. The urgent need to create video sensors and processors for parallel (simultaneous by pixel) image processing with advanced functionality and multichannel picture outputs is shown in the chapter. We consider perspective spheres and areas of application of such sensor processors, in particular, for hardware high-performance architectures of neural networks, convolutional neural structures, parallel matrix-matrix multipliers, and special processor systems. We show and analyze the theoretical foundations, the mathematical apparatus of the matrix and continuous logic, and their basic operations, show their functional completeness, and evaluate their advantages and prospects for application in the design of biologically inspired devices and systems for processing and analysis of array signals. We show that some functions of continuous logic, including operations of normalized equivalence of vector and matrix signals, the operation of a limited difference in continuous logic, are a powerful basis for designing improved smart microcells for analog transformations and analog-digital encodings. In the next sections of the chapter, we consider in more detail the design and modeling aspects of such micro-basic cells and continuously logical high-speed ADCs based on them. The picture-type ADC consists of an array of parallel operating channels, each of which is a basic microcell or a set of them. The basic microcell of a 2D ADC structure consists of several digital-analog cells (DC), which is made on 15–35 CMOS transistors. For an iterative type ADC, only one DC cell is needed, which is DC-(G), and it additionally contains a sample and hold device (SHD). 2020-01-01T00:00:00Z https://ir.lib.vntu.edu.ua//handle/123456789/15366 Особливості канального та фізичного рівнів технології MIMO для стандарту 802.11 Михалевський, Д. В. Монография содержит научные исследования авторов в области техники и технологий. Может быть полезна для инженеров, руководителей и других работников предприятий и организаций, а также преподавателей, соискателей, аспирантов, магистрантов и студентов высших учебных заведений. 2017-01-01T00:00:00Z