A numerical method based on the Fourier Transform Method applications for the study of the optical waves propagating in dielectric planar waveguides. Research waveguide search wavelengths of light according to the received propagation constants.
Definition operating distance of air ultrasound range finders by using the modified radar equation. Experimental verification of the developed computational procedure is discussed, and calculations of the relevant terms for this case are presented.
Increasing the speed of information transmission in telecommunication systems. The study of signal distortion due to nonlinearities and types of dispersion. Using amplitude modulation to increase the speed of transmission in telecommunication networks.
Research and characterization of features of the method of information transfer using perfect binary arrays, which is based on their structural and correlation properties. Transmission of discrete digital messages by means of cyclic wideband signals.
The breadth and depth of digital signal processing as one of the most powerful technologies. The most important concepts in statistics and probability. A variety of signal processing techniques. Properties and usage of convolution in several areas.
Digital watermarking schemes for multimedia authentication. A new public-key algorithm for watermarking of digital images. Geometric distortions correction using image moment in image watermarking. Active watermarking system: protection of digital media.
A direct digital frequency synthesizer in modern electronic devices. Criteria of reliability the communication systems. The most promising radio transmission system. Brief introduction of arithmetic operations in digital synthesizer radio signals.
The implementation of beamforming and spatial diversity in Orthogonal Frequency Division Multiplexing systems. The differences of OFDM transmission over scenarios with different angular spread, which can viewed clearly from the base station antenna (BSA).
Development of a method of transmission based on systems with decision feedback and the timer signal designs with the fix part of the error interval of the "good" state equation as. The definition of the boundary conditions of its use and effectiveness.
Measures to ensure the quality of technical operation of digital terrestrial television broadcasting. Requirements for quality maintenance terrestrial television. The permissible norms a phase noise. The calculation algorithms for digital switching.
The investigation of the state of EGNOS Approach with Vertical guidance for Europe. EGNOS performance parameters are described in terms of accuracy, integrity, availability and continuity. The established results confirm the need for the EGNOS service.
Analysis of the distribution of the electric field within the space bounded by the annular border on the basis of the theory of singular integral equations in problem of pairing. Formulas for determination of the electric field in the active zone.
Analysis of achievements in the problem of energy loss in piezoceramic resonators. A description of the methodology of experimental determination of loss factors energy and communications, mechanical quality factor at resonance and anti-resonance.
The studying the latest model of simultaneous interpretation booths in the market - iBooth. The best acoustic environment for the distinction of various languages. The principal benefits of innovative digital technology to modern conference systems.
Development and justification of new methods for tracking the frequency of a harmonic acceleration signal based on estimates of the instantaneous frequency and phase. Ways to improve the efficiency of new systems, assess their advantages, disadvantages.
Method of fast analog-to-digital conversion (ADC) signals with improved dynamic parameters. Structural diagram of high-speed analog-to-digital Converter and analysis of dynamic range for the Converter. Consistent structural capacity malacostraca ADC.
Fiber optic gyro, metallic resonator Coriolis vibratory gyro main accuracy parameters are compared. Manufacturers of the analyzed gyros are from Russia (FOG) and Ukraine (CVG). Bias components calculation at stable temperature are also given and compared.
The evolutionary strategy of multi-tier WDR - filters with LM-modes, optimized with original knowledge-based CAD system designing is tested. The designing of filters, which are intended for the next generation of millimeter waveband wireless systems.
Development of a system of digital wireless high-speed data transmission with orthogonal frequency division. Mathematical modeling and efficiency in the use of Fourier transform and finite Radon transform in a system with orthogonal frequency division.
Classification, general parameters and composition of REE. Distance Measurement Equipment. Radio Altimeters. Doppler Systems. Direction Finders. Radio Beacon Landing Systems. Design and Operation Principles of A/C Communication. Equipment Layout of REE.