A. L. Reznik1, V. M. Efimov1, and A. N. Ginzburg2 1Institute of Automation and Electrometry, SB RAS, Novosibirsk E-mail: reznik@iae.nsk.su 2Institute of Applied Physics, RAS, Nizhnii Novgorod
Pages: 21-28 Subsection: ANALYSIS AND SYNTHESIS OF SIGNALS AND IMAGES
In processing digital images of different physical origin, it is frequently necessary to eliminate from analyzed fragments the spatially uncorrelated additive noise resulting usually from imperfect recording process. Fast algorithms for calculating geometric characteristics of such connected noise regions are proposed and program-implemented. The obtained results were used to construct optimal rank filters intended to detect and suppress the noise.
A. Yu. Bavrina1, N. I. Glumov2, V. V. Sergeyev2, and E. I. Timbay1 1Samara State Aerospace University, Samara E-mail: alina@smr.ru 2Institute of Image Processing Systems, RAS, SamaraE-mail: vserg@smr.ru
Pages: 29-36 Subsection: ANALYSIS AND SYNTHESIS OF SIGNALS AND IMAGES
A method for lossless compression of palletized synthetic images is described. The method bases on hierarchical image representation as a set of matrices or hierarchical levels (HL) of a reduced size and on storing only information required to reconstruct a current HL from the calculated values of previous HLs. Different versions of implementing the method are considered. Some of them exploit actively peculiarities of cartographic images. Experimental investigation shows advantages of the method over the well-known lossless compression standards.
B. M. Glinsky, M. S. Khairetdinov, and G. F. Sedukhina
Institute of Computational Mathematics and Mathematical Geophysics, SB RAS, Novosibirsk E-mail: marat@opg.sscc.ru
Pages: 37-44 Subsection: ANALYSIS AND SYNTHESIS OF SIGNALS AND IMAGES
The role of nonlinear wave processes of radiation and propagation of elastic oscillations in improving the quality of data processing in physical experiments is considered. Analysis of seismic waves without loss of generality of results relative to waves of another nature is carried out. The data were obtained in seismic physical experiments on depth sounding of the Earth by elastic oscillations generated by powerful surface vibrators developed by scientific institutions of the Siberian Branch of the Russian Academy of Sciences. The efficiency of the proposed approach to data processing is substantiated by the higher measurement accuracy of seismic wave parameters and by results referred to determining by daily and semi-diurnal periodicities of lunar-solar tides in seismic field parameters, which were obtained for the first time.
N. Ikoma1, M. Sakata2, and M. Doi3 1Kyushu Institute of Technology, Fukuoka, Japan E-mail: ikoma@comp.kyutech.ac.jp 2Hitachi Kokusai Electric Inc., Tokyo, JapanE-mail: sakata@sys2.comp.kyutech.ac.jp 3Osaka Electro-Communication University, Osaka, JapanE-mail: doi@isc.osakac.ac.jp
Pages: 45-53 Subsection: ANALYSIS AND SYNTHESIS OF SIGNALS AND IMAGES
B. Spektor and A. Normatov
Technion, Israel Institute of Technology, EE department, Haifa, Israel E-mail: boriss@ee.technion.ac.il, E-mail: alexn@tx.technion.ac.il
Pages: 54-60 Subsection: PHYSICAL AND TECHNICAL PRINCIPLES OF MICRO- AND OPTOELECTRONICS
I. A. Finogenko
Institute for System Dynamics and Control Theory, SB RAS Irkutsk E-mail: fin@icc.ru
Pages: 61-68 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
A theory of right-hand solutions for one class of differential equations which the Lagrange systems of the second kind with discontinuous controls are reduced to is developed. The structure of controls is defined from the solution of the problem of synthesizing control systems for mechanical objects on the basis of the decomposition principle. An implicit method for single-valued definition of controls at discontinuity points is proposed. General issues of existence of right-hand solutions and their properties like uniqueness, continuation, stability, and continuous dependence on the initial conditions and parameters are studied.
Yu. N. Zolotukhin1 and G. M. Shidlo2 1Institute of Automation and Electrometry, SB RAS, Novosibirsk E-mail: zol@idisys.iae.nsk.su 2The Novosibirsk Military Institute, Novosibirsk E-mail: georg4@online.sinor.ru
Pages: 69-80 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
Results of researches on using modern information technologies in the field of designing the means for training cadets to skills of subdivision control in combined arms operations are presented. A version of implementing an intelligent cadet agent-assistants in the model of a perspective educational organization for conducting practical tactical occupations is proposed. Basic approaches to defining the requirements on the criteria for estimating of components for the model of intelligent interactive training system architecture are formulated. Methods for implementing multi-agent systems and intelligent agents in perspective tactical simulators are proposed.
F. E. Schneider and D. Wildermuth
Research Establishment for Applied Sciences (FGAN), Wachtberg, Germany E-mail: schneid1@fgan.de; E-mail: dennis@fgan.de
Pages: 81-90 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
A modified potential field approach is proposed for motion coordination in formations of multi-robot systems. The approach is briefly compared to related work. For the problem of moving in formation, a solution based on a directed potential field is presented. Different forces belonging to other robots and obstacles are combined and used to move each robot to its desired position inside the formation. While moving in formation, the group is able to avoid obstacles and move toward a specified target. Results of experiments are presented to illustrate the differences and improvements of this approach in comparison with the classical method.
F. E. Schneider and D. Wildermuth
Research Establishment for Applied Sciences (FGAN), Wachtberg, Germany E-mail: schneid1@fgan.de; E-mail: dennis@fgan.de
Pages: 91-99 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
A new approach to relative position estimation in multi-robot systems, based on information of laser scanner systems, is presented. An Extended Kalman Filter (EKF) is used to obtain continuously updated position estimation. All robots of a group use these data in order to generate one common coordinate system. Experimental results are presented, including formation movement as an example application.
Liu Xing-Long and Duan Guang-Ren
Center for Control Theory and Guidance Technology Harbin Institute of Technology Harbin, China E-mail: lxl8333205@sohu.com
Pages: 100-112 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
This paper deals with proportional-integral observer (PI-observer) design and robust control for switched systems under arbitrary switching sequences. The proposed approach detects the existence of a switched quadratic Lyapunov function to check the asymptotic stability of switched systems. Two equivalent conditions that can guarantee the PI-observers to track the state signal are developed. Based on these conditions, we synthesize the PI-observer-based state-feedback controller stabilizing the closed-loop system. Moreover, a state-feedback controller based on a PI-observer is developed to stabilize the switched systems with uncertainties. Numerical evaluation illustrates feasibility and advantage of the PI-observer for switched systems
Liu Xing-Long and Duan Guang-Ren.
Center for Control Theory and Guidance Technology Harbin Institute of Technology Harbin, China E-mail: lxl8333205@sohu.com
Pages: 113-122 Subsection: CONTROL SYSTEMS FOR APPLICATION IN SCIENCE AND PRODUCTION
This paper mainly deals with the L2-ain control of switched systems based on an output dynamical compensator. A special output dynamical compensator for switched systems is developed and a compensator-based state-feedback controller for switched systems is synthesized to guarantee the L2-gain of closed-loop systems. Based on these assumptions, the robust control of switched systems with the L2-gain is realized. Numerical evaluation illustrates the feasibility and advantage of this output dynamical compensator for switched systems.
The paper deals with the problems of interpreting fiction text and the problem of interpreting the texts written by one author and transposed to the literary works by another author in particular (Mark Twain
The paper describes some basic semantic functions of the particle kaj in the Ket language. It is proposed that the basic component of the semantics of the particle in question is that of frustrative, i. e. the component marking the deviation from the normal course of situation evolution as thought of by the speaker/narrator. Frustrative is defined as a semantic category expressing frustration of the subject
The main aim of the paper is to reveal specific features of Orhon (ancient Turkic written language) texts. The paper makes an attempt to discuss the problems of variance in the way of writing runic signs and describes the specificity of writing vowels and consonants in root stems and affixes. Taking into account phonetic, structural and grammatical peculiarities of word-forms, the general representation of runic orthography is made. As a result of the analysis of the basic rules of spelling, the author proposes a new version of the Orhon orthographic system.
The paper describes the group of Russian impersonal (subjectless) sentences with the semantics of the state of environment or a person, which have the predicate expressed by an impersonal verb proper or a personal (subject) verb used impersonally. The obligatory component of the model describing the environment state is the position of a localizer which may remain unfilled if the world surrounding us or the space mentioned above in the context is meant. The models with the semantics of a person
The paper presents the analysis of the typical passages which form the basic stock of literary and poetic tradition. The author follows the structure of
The paper analyzes the Khakas myths in the course of their historical development. The author distinguishes three groups of specific textual features characteristic of myth: the cohesive narration-plot, the text explaining a ritual, the text explaining an object. The author examines the evolution of this genre tracing it from the early stages of its existence when myth was characterized by simplicity of its message and a small set of literary and stylistic means to the stage when its structure became complicated and myth took the form of a comprehensive narrative.
The aim of the paper is to formulate the objectives to be gained by the folklore text translator and to outline the scope of the tasks to be accomplished while translating folklore texts. The problems arising in rendering the folklore language and style are studied and the sets of literary and figurative folklore means which can be adequately conveyed in the translated version are highlighted. The most relevant publications concerning the problems of translating folklore texts are reviewed.
Results of hydrochemical and microbiological investigation of 13 sodium-saline lakes of the Onon-Kerulen group, characterized by high pH (8,5-10,5) and mineralization (5,3-382,8 g/l) are presented. The seasonal and annual dynamics of the numbers of individuals of different physiological groups of bacteria destroying the organic matter and the rates of microbial processes were investigated in microbial mats and in bottom sediments.
The features of spatial and temporal inhomogeneity of hydrochemical indices, composition and structure of phytoplankton in the Cherkalov Sor (a bay of Lake Baikal) are considered on the basis of field observations carried out in 2002.
The data of long-term investigations of the Bukhtarma reservoir and the mid Irtysh revealed substantial changes in the species composition, structure and abundance of phytoplankton, which allowed us to determine the directions of changes in the ecosystem. Eutrophication, which started in the Bukhtarma reservoir in late 1970s, got accelerated and occupied the mid Irtysh. The river ecosystem survives ecological stress. The Bukhtarma reservoir is in the state of ecological modulation according to the indices of phytoplankton development; however, the enhancing pollution with organic substances brings about the threat to the stability of the ecosystem.
Partial floras of the water bodies of the Magadan Region are characterized. The maximal diversity and abundance of vascular water plants was observed in floodplain water bodies - former and addition
Organic pollution of the surface water layer in the Zolotoy Rog Bay is investigated using the indication micro-flora, in comparison with the reference region (the Pogranichn
Analysis of changes in the quality of water in the plain artificial water reservoir with a small regulating prism (the Novosibirsk water reservoir) was carried out during the years with different water income. The role of the season
Alcohol-soluble proteins found first in the seeds of cereals as early as in the XVIII century (Shewry, Tatham, 1999) and later called "prolamines" (Osborne, 1924) are presented in other monocotyledonos and dicotyledonos . On the grounds of their unbalan
Results of field investigation carried out in May to August 2006 in the southern part of the Baraba Lowlands are presented. It is shown that hydrothermal conditions occurring in the reed-sedge floodplain are the most favourable ones for a large number of staphyline bugs. The staphyline bug population of a birch grove is characterized by relatively stable indices of their number during the whole warm period. The staphyline population in the group of biotopes located at the slope of a hill ridge (grassy and dry valley meadows) is less stable. Strong drying of the soil horizon decreases the species diversity of staphyline bugs in these biotopes.
