AUTOMATED MEASURING SYSTEM FOR TESTING INTEGRATED CIRCUITS VOLTAGE CONVERTERS
A testing method has been developed that provides the optimal range of measurement parameters, required to detect latent defects of the developing device. IC chip voltage converter was tested by automated measuring equipment. This testing method allows to keep a high yield with decrease of topological size and complexity of products, as well as to save production startup time due to pre-debugging and optimization of technology processes and structures.
Keywords: integrated circuit, testing, automatization, voltage converter.
OPTICAL MINISTICKS BASED VCSEL — NEW CONTROLS FOR ROBOTIC SYSTEMS
The paper considers increase of control complexity connected with robotics introduction using traditional input devices. To solve this problem the paper offers usage of designed by Tenzosensor LLC digital optical ministics based on elastodeformed polymeric elements, VCSEL lasers and PIN photodiodes. The paper describe competitive advantages of digital ministicks in comparison with traditional input devices and its high operating characteristics acknowledged by experimental investigations. The paper offers variants of miniticks usage for various functions.
Keywords: digital ministick, elastic deformation, control system, photodiode, semiconductor laser, microcontroller.
LOCALIZATION OF THE EQUIVALENT PLANAR SOURCES ON THE PCB USING NEAR-FIELD MEASUREMENTS
Yu.V. Kuznetsov, Moscow Aviation Institute (National Research University), Head of the Theoretical Radio Engineering Department, Prof., Dr.Sci.(Tech.); firstname.lastname@example.org
A.B. Baev, Moscow Aviation Institute (National Research University), docent, Ph.D.; email@example.com
A.A. Gorbunova, Moscow Aviation Institute (National Research University), docent, Ph.D.; firstname.lastname@example.org
M.A. Konovalyuk, Moscow Aviation Institute (National Research University), docent, Ph.D.; email@example.com
In this paper a 2D parametric identification algorithm of stochastic electromagnetic interference sources based on near-field measurements is presented. The characterization of the registered stochastic time domain field distribution was implemented by evaluating the autocorrelation and cross-correlation spectra for frequencies of clock harmonics, used for the synchronization of electronic device and information transmitting through the interfaces. The experimental data was processed with proposed parametric identification procedure for a spatial localization of equivalent dipoles and effective sources on the surface of the radiating structure.
Keywords: printed circuit board, electromagnetic interference, near-field, dipole model.
RADAR TRACKING BY MULTIPLE MODEL SIMPLIFIED FILTER
M.I. Sychev, Moscow Aviation Institute (National Research University), head of the department 401 «Radar and radio navigation», Dr.Sci.(Tech.); firstname.lastname@example.org.
The radar tracking of aircraft are discussed. Multiple model filters application is proved. The basic attention is given a choice of models of movement. Three basic types of horizontal movement of civil aircraft and their parameters are defined. The approach to construction of the simplified multiple model filters is offered. Results of comparative simulation of the multiple model algorithms are presented.
Keywords: radar tracking, multiple model filters.
GLOBAL MAXIMUM SEARCH IN POSITION ESTIMATION ALGORITHM FOR PASSIVE WIDE BASE SYSTEM
D.M. Zhukov, Moscow Aviation Institute (National Research University), postgraduate student, ZAO «RADIY TN», junior researcher; email@example.com
T.Ya. Shevgunov, Moscow Aviation Institute (National Research University), docent, National Research University Higher School of Economics, docent, Ph.D.; firstname.lastname@example.org
F.A. Belousov, CEMI RAS, reseacher, National Research sity Higher School of Economics, docent; email@example.com
This paper deals with the problem of reducing computational cost for the one-stage estimator for distributed passive position location radar system. The result is achieved by using grid optimization technique rather than conventional gradient-based global optimization techniques. According to the structure of the target function, the sufficient condition for minimal step size is formulated and three spatial sampling approaches were proposed: a homogeneous step, a non- homogeneous step and an adaptive step. The comparison of computational cost and abnormal error rate for these approaches are also investigated in the paper.
Keywords: position estimation, passive radar, TDOA, one-step maximum likelihood estimation, global optimization.
USE TRANSPORT CODING FOR REDUCING DATA ACQUISITION TIME ON RECEIVER
Eu.O. Karpukhin, Moscow Aviation Institute (National Research University); assistant professor, Design Information Technologies Center, Russian Academy of Sciences, senior scientist, Ph.D.; firstname.lastname@example.org
N.V. Britvin, Moscow Aviation Institute, student; email@example.com
Considers the problem of head-of-line blocking worsening the data-driven interaction of users in real time. Analyzed the existing options and methods of reducing assembly time network packet at the transport and application levels. Bounds are obtained for use transport coding in protocols with congestion control algorithms. Recommendations are given for use coding techniques depending on window size.
Keywords: telecommunication networks, transport coding, data-driven interaction, assembly delay messages, FEC, ARQ.
LTE COMMUNICATION NETWORKS DESIGN USING IMS
V.A. Grigoryev, «Laboratoria Infokommunikacionnyh Setei» Ltd, general director, ITMO University, head of the wireless telecommunications chair, Dr.Sci.(Tech.), professor; firstname.lastname@example.org
Yu.A. Raspayev, «Telekom-Proekt» Ltd., deputy general director, ITMO University, associate professor of the wireless telecommunications chair, Ph.D.; email@example.com
K.A. Stepanenko, Moscow Metropolitan on information technologies and communications, deputy head; Stepanenkofirstname.lastname@example.org
I.A. Khvorov, «Laboratoria Infokommunikacionnyh Setei» Ltd, deputy general director, ITMO University, associate professor of the wireless telecommunications chair, Ph.D.; email@example.com
M.L. Khazov, Ministry of Telecom and Mass Communications of the Russian Federation, head of the department on state regulation communication networks operation and etrology; firstname.lastname@example.org
Ministry of Telecom and Mass Communications of the Russian Federation issued in 2016 regulatory acts that allows building mobile networks of LTE standard. These networks can provide voice services and use the numbering of the public telephone network. In this paper, we analyze particularities of LTE network design using IP Multimedia Subsystem (IMS). We show that the new design methods allow substantial savings on the core network building.
Keywords: mobile networks, regulatory acts, IP Multimedia Subsystem (IMS), Voice over LTE (VoLTE).
SPARSE CODE MULTIPLE ACCESS
D.A. Pokamestov, TUSUR, department of telecommunication and basics of radioengineering, postgraduate student; email@example.com
A. Y. Demidov, TUSUR, head of department of telecommunication and basics of radioengineering, Ph.D.; firstname.lastname@example.org
Y.V. Kryukov, TUSUR, department of telecommunication and basics of radioengineering, postgraduate student; kryukov. email@example.com
E.V. Rogozhnikov, TUSUR, department of telecommunication and basics of radioengineering, teaching assistant; firstname.lastname@example.org
R.R. Abenov, TUSUR, department of telecommunication and basics of radioengineering, postgraduate student; email@example.com
We study the method of multiple access with sparse code. Described the algorithm for organization codebooks, used for form modulation symbols. Shown algorithms for detecting symbols and their comparison. Illustrated, that the organization of the physical layer of communication system with sparse code multiple access, is superior to existing system for noise immunity and number of subscribers.
Keywords: SCMA, sparse code division multiple access, 5G, wireless broadband access, multiple access, MAP, MPA, OFDMA.
AUTOMATED MULTI-CHANNEL TELEVISION AND RADIO BROADCASTING MONITORING
V.A. Kozmin, «IRCOS» JSC, director for scientific works, docent; Ph.D.; firstname.lastname@example.org
S.V. Korochin, «IRCOS» JSC, head of information system department, Ph.D.; KorochinSV@ircoc.vrn.ru
D.N. Bocharov, «IRCOS» JSC, software engineer; BocharovDN@ircoc.vrn.ru
The article describes characteristics of multi-channel maintenance-free complex which performs automated monitoring and measurement of broadcasting signals and acts as part of automated radio monitoring system and provides measurement, monitoring and recording of television and radio signals.
Keywords: radio monitoring, automated system, measurement, analyzing, recording, broadcasting.
TRIAD-CLUSTER METHOD OF ANALYSIS AND SIMULATION OF RANDOM ANTENNAS
O.N. Maslov, PSATI, chief of chair, Dr.Sci.(Tech.); email@example.com
New triad-cluster method (TCM) of analysis and simulation of random antennas (RA) is designed to solve the external tasks of the statistical antenna theory (SAT) by means of the statistical simulation method (SSM) and Monte Carlo method (MCM). The use of TCM is illustrated by the study of excitation conditions aperture random antenna as a series of rectangular apertures modeling window in the room. The solution to this task is necessary for design a system to protect confidential information for commercial purposes leaking in the external environment through the aperture random antenna through channels of electromagnetic fields (EMF).
Keywords: leakage of confidential information protection system, aperture random antenna, statistical simulation method.