2687-0517 5 181 2013

RAR RUS 9-15 Chesnokov Mikhail Digital comb filter in the devices of noise reduction of speech signals Device noise reduction of speech signals are designed to improve speech recognition systems and hearing aids. In Acoustic sound system technology has spread widely Noise Gate. Technology Noise Gate, being invariant to mean spectrum of the input signal does not include the features of the speech signal, which limits its application. This feature consists that the spectrum of the speech signal has periodic components for the voiced parts of speech. The frequency of the speech signal allows the use of an agreed comb filter to separate the signal from the mixture with noise. This paper focuses on the development of the method of the digital comb filter (СF) for noise suppression in speech signal. 62-533.4 digital signal processing comb filter polynomial interpolation Lagrange polynomial periodic signal https://infocom.spbstu.ru/article/2013.35.1/ 01_chesnokov.pdf

RAR RUS 16-22 Semakov Nikita lanfren2@gmail.com 22735712200 Peter the Great St. Petersburg Polytechnic University Sorotsky Vladimir sorotsky@mail.spbstu.ru

St. Petersburg, Russian Federation

The influence of switch devices’ response time on signal distortion in power amplifiers of radio transmitters The paper gives an overview of method for computing distortion originating due to key devices’ inertance while generating signal in radio transmitters. A connection between devices’ time response and envelope and carrier distortions has been established on the basis of the mathematical model of radio signal. The method can be used for distortions assessment of radio transmitters being applied in data communications, navigation or broadcasting systems. 621.37 radio transmitter switch mode signal distortion https://infocom.spbstu.ru/article/2013.35.2/ 02_semakov.pdf

RAR RUS 23-28 Markelov Gennadii teledv@inbox.ru Method of scenarios in the management of real time The results of the analysis of the use of scenarios in the management of real-time. Showing the problems arising from the application of scenarios and the direction of their solutions. Estimates are obtained by the method of quality control scenarios and conditions to simplify the solution of the problem of clustering. The results may be useful to developers of control systems with a large number of states of the object management. 004.01:519.8:65.01 method scenarios clustering of the state space https://infocom.spbstu.ru/article/2013.35.3/ 3_markelov.pdf

RAR RUS 29-38 Peter the Great St.Petersburg Polytechnic University Igor G. igcher@spbstu.ru

Polytechnicheskaya, 29, St.Petersburg, 195251, Russia

St. Petersburg scientific school of stiff optimization (history and review of main scientific results) Brief description of history of development of stiff optimization problem decision by St. Petersburg (Leningrad) school is presented. It is established that main results are derived from basic theory of stiff dynamic systems. Main results of mathematical programming of stiff problems are stated. 681.3.06 stiff systems stiff optimization mathematical programming numerical methods computer simulation https://infocom.spbstu.ru/article/2013.35.4/ 04_chernorutsky.pdf

RAR RUS 39-45 Andrea Kliton kliton.andrea@gmail.com Shevlyakov Georgy Georgy.Shevlyakov@phmf.spbstu.ru Outlier detection with boxplots based on new highly efficient robust estimates of scale Robust versions of Tukey’s boxplot based on the low-complexity highly efficient robust estimates of scale are presented. Boxplots’ performance is tested  experimentally using Monte–Carlo method on two big groups of data distributions: symmetric and skewed models of distribution. The proposed versions of boxplots prove to be a better choice when dealing with contaminated data. 519.233.22 boxplot data visualization robustness efficiency https://infocom.spbstu.ru/article/2013.35.5/ 05_andrea.pdf

RAR RUS 46-49 Evdokunin Georgy evdg@etelecom.spb.ru Popkov Evgeny enpopkov@gmail.com Concepts of simulation modelling of processes in electric power systems This paper covers concepts of simulation modelling in electric power systems, problems of modelling, connected to the complex calculation of transient processes in subsystems, that form the technological process of generation, transmission and distribution of electrical energy. 621.318:621.313 simulation modelling electric power plant synchronous generator transformer electric power line https://infocom.spbstu.ru/article/2013.35.6/ 06_evdokunin.pdf

RAR RUS 50-57 Loginov Anatoly a_loginov@inbox.ru Potekhin Vyacheslav slava.potekhin@mail.ru Akulov Dmitrii dmitryab87@ya.ru Khritonenkov Anton a.khritonenkov@gmail.com Poletaev Ivan polivager@mail.ru Intelligent control system of autonomous wind farm The problem of wind farm intelligent control is described, and given a way to solve the problem with using a combination of Adaptive Heuristic Critic model with Reinforcement Learning and Fuzzy Inference System. Autonomous wind farm is modelled in Matlab/Simulink. Wind farm work using intelligent control system is compared with wind farm work without control. 621.311.24 integrated distributed hybrid network intelligent control system wind turbine autonomous wind farm neural network system https://infocom.spbstu.ru/article/2013.35.7/ 07_loginov.pdf

RAR RUS 58-66 Peter the Great St.Petersburg Polytechnic University Igor G. igcher@spbstu.ru

Polytechnicheskaya, 29, St.Petersburg, 195251, Russia

Gradient methods with exponent relaxation function New class of matrix gradient techniques is described on the basis of relaxation function apparatus. This class generalises classical gradien methods, Newtonian methods and Levenberg–Markguardt methods. Distinctive from classical, methods developed keep convergence for nonconvex problems of nonlinear programming in high stiffness of criterion functional conditions. 681.3.06 gradient methods relaxation functions non-convex problems stiff functionals gradient methods https://infocom.spbstu.ru/article/2013.35.8/ 08_chernorutsky.pdf

RAR RUS 67-72 Kuchinsky Vladimir vladkuchinsky@raail.ru Popkov Evgeny enpopkov@gmail.com Chayka Valeriy info@ruselprivod.r u Control current inverter for variable speed drive motors The frequency converter schemes for power supply systems of the variable speed motors with permanent magnets are overviewed in the paper. Mostly the schemes of the autonomic current inverters with the artificial phase current switching are analyzed. The different aspects of the current switching process depending of the scheme topology are studied. The recommendations to choose the real scheme of the frequency converter were elaborated. 621.311:621.318 VARIABLE DRIVE MOTOR PERMANENT MAGNET FREQUENCY CONVERTER AUTONOMIC CURRENT INVERTER ARTIFICIAL PHASE CURRENT SWITCHING https://infocom.spbstu.ru/article/2013.35.9/ 09_kuchinsky.pdf

RAR RUS 73-78 Tolkovich Dmitriy PYBY@inbox.ru Marusina Maria marusina_m@mail.ru Suvorov Nikolay nbsuvorov@yandex.ru Kozachenko Alexandr a_kozachenko@mail.ru Multifunctional biotechnical system for the study physiological signals of intellectual activity The article deals with the structural schema and organization of informational and measurement system for physiological studies of man during intense intellectual activity. Scientific results that may be obtained in evolve a complex, can have a base value for those engaged in the study of psychophysiological mechanisms of intellectual activities, as well as a comprehensive assessment of the functional state of the person in control systems with different physical and mental stress. 615.47, 616-71, 616.12-073.97-71 biotechnical system intellectual activity electroencephalograph biological signals measuring complex https://infocom.spbstu.ru/article/2013.35.10/ 10_tolkovich.pdf

RAR RUS 79-86 Kovazhenkov Michail kovazhenkov@mail.ru Koroteev Michail sejros@bk.ru Harlamova (Sidorova) Ekaterina E. sikaterina@mail.ru Application of cognitive model for the estimation of innovative potential of high school In modern conditions, high school is a major provider of innovation in the manufacturing sector, so it is necessary to monitor the innovation of high school in order to make better use of its resources. The paper deals with the application of cognitive mathematical models to estimate the innovation potential of the university. 51-77 the innovative potential of high school cognitive mathematical models Bayesian networks the effectiveness of the high school the estimation of innovative potential https://infocom.spbstu.ru/article/2013.35.11/ 11_kovazhenkov.pdf

RAR RUS 87-92 Nesterov Sergey nesterov@saiu.ftk.spbstu.ru Smetanina Maria manka.3663@yandex.ru Quality measurement of the test tasks in the Learning Management System Moodle The paper describes statistical measures of the test tasks quality, which learning management system Moodle calculates. Examples of practical use of these indicators are given. 004.588 knowledge testing quality measurement of the test tasks computerbased testing E-learning MOODLE https://infocom.spbstu.ru/article/2013.35.12/ 12_nesterov.pdf

RAR RUS 94-102 Gerasimov Vladimir vovka_ok@list.ru The motion control system of the mobile robot in environment with dynamic obstacles In the paper two methods of mobile robot motion control are investigated in сomposition of navigation system: effective path method and dynamic window method. A simulation was performed and dependencies of methods results from various parameters are obtained. The algorithm to determine the parameters of motion from laser rangefinder is offered. 62-503.57 mobile robot moving obstacles robot control laser rangefinder https://infocom.spbstu.ru/article/2013.35.13/ 13_gerasimov.pdf

RAR RUS 103-108 Devyaterikov Egor retegor@mail.ru Mikhailov Boris robot@bmstu.ru Mobile robot movement control system with visual odometer The paper presents test of visual odometer that operates as position feedback sensor in mobile robot control system. Visual odometry is a path recovering approach based on computer vision and calculating of surroundings keypoints flow. The keypoints data comes from image sequence processing. Such system capable of working in unprepared nondeterministic environment and wheels slipping insensitive. The paper consists of implemented system description and results of it’s testing. 004.896:535.8 stereovision computer vision odometry visual odometry trajectory recovering mobile robot https://infocom.spbstu.ru/article/2013.35.14/ 14_devyaterikov.pdf

RAR RUS 109-118 Jatsun Sergey teormeh@inbox.ru Loktionova Oksana teormeh@inbox.ru Volkova Lyudmila mila180888@yandex.ru Vorochaev Alexander teormeh@inbox.ru Stages of movement of the fourlink robot moving with the jump from the surface The settlement scheme of the four-link robot moving with a jump from a surface is provided, the jump of the device is described in the form of sequence of stages, on each of which links of the robot make certain types of movement, the mathematical model in the form of the differential equations describing movement of the robot at all stages is developed, results of numerical modeling of a jump according to the specified sequence of stages are presented. 62-503.5 multilink jumping robot stages of the jump sequence of stages characteristics of the jump height length https://infocom.spbstu.ru/article/2013.35.15/ 15_yatsun.pdf

RAR RUS 119-124 Golubeva Olga ogolubeva@rtc.ru Il’yin Anatoliy toly@rtc.ru Pryamitsyn Igor pib@rtc.ru Shmakov Oleg shmakov@rtc.ru Features of programming of management of linear movements of the robot For linear movement of the robots of different function suspended on cables or installed on suspended to a rail or on land rails, the interface providing convenient possibilities of control is offered. Three scales of adjustable scale, the table of the demanded (remembered) positions, buttons of the indication of speed and the direction, the selector of size of a step are provided to the user. The listed opportunities are discribed and offered as unified and ergonomic. 004.896:004.5:621.865.8-5 robot linear movements interface unification https://infocom.spbstu.ru/article/2013.35.16/ 16_golubeva.pdf

RAR RUS 125-131 Nguyen Anh robot@bmstu.ru Mikhailov Boris robot@bmstu.ru The method of multifaceted spatial objects recognizing The paper presents the way of three-dimensional objects description for robotics tasks. The method of multifaceted spatial objects recognizing is proposed, and evaluation of its performance on real scenes is completed. 004.896:535.8 stereovision computer vision mobile robot https://infocom.spbstu.ru/article/2013.35.17/ 17_nguen.pdf