5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)

21-21 Sept. 2001

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  • 5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service

    Publication Year: 2001, Page(s):0_2 - xvii
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (953 KB)

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  • The use of navigational installations of satellite systems GLONASS and GPS

    Publication Year: 2001, Page(s):729 - 730 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (172 KB) | HTML iconHTML

    In the article the versions of usage of instrumentation of a customer of satellite navigators GLONASS and GPS are submitted. The characteristics of a navigation set issued in Krasnoyarsk, and the outcomes of experimental researches are adduced. View full abstract»

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  • 5th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Service. TELSIKS 2001. Proceedings of Papers (Cat. No.01EX517)

    Publication Year: 2001
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    Freely Available from IEEE
  • Author index

    Publication Year: 2001, Page(s):815 - 816
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    Freely Available from IEEE
  • Parity error detection in embedded computer system

    Publication Year: 2001, Page(s):445 - 450 vol.2
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (464 KB) | HTML iconHTML

    This paper considers the problem of implementing parity error detection in a bus transceiver circuit used in highly-reliable embedded computer systems. The design of a 32-bit bus transceiver is efficient when either capacitive load/coupling between bus lines causes transitions or signal delays on such lines with respect to the fault-free case, or when permanent faults (stuck at zero/one) on bus li... View full abstract»

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  • A fast algorithm for linear convolution of discrete time signals

    Publication Year: 2001, Page(s):595 - 598 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    A new, computationally efficient, algorithm for linear convolution is proposed. This algorithm uses an N point instead of the usual 2N-1 point circular convolution to produce a linear convolution of two N point discrete time sequences. To achieve this, a scaling factor is introduced which enables the extraction of the term representing linear convolution from any algorithm that computes circular c... View full abstract»

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  • Advanced image compression techniques: comparative functionalities and performances

    Publication Year: 2001, Page(s):439 - 444 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (624 KB) | HTML iconHTML

    With the increasing use of multimedia techniques, image compression requires higher performance as well as new features. Image coding standards, including some newly developed ones (MPEG-4 VTC, JPEG2000), are reviewed. A comparative analysis of their performances and functionalities is also given. The results show that the choice of the best standard depends strongly on the application at hand, bu... View full abstract»

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  • An all-encompassing spectral analysis method for RF front-ends

    Publication Year: 2001, Page(s):591 - 594 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (368 KB) | HTML iconHTML

    Many front-end studies have been introduced, but most of them fail to present, in a consistent way, how the signals are transformed throughout the front-end itself. This paper introduces a unique presentation of spectrum and signal transformation within RF front-ends. This approach should help researchers to have better insight into the high-level modeling and characterization of RF front-ends and... View full abstract»

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  • Evolution of WDM optical networks

    Publication Year: 2001, Page(s):473 - 480 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (768 KB) | HTML iconHTML

    Implementation of wavelength division multiplexing (WDM) in optical networks increased the fiber bandwidth utilization and emerged from the use in point-to-point applications to its current position as the next optical networking technology. There are, as well, other competing network approaches, such as optical time division multiplexing (OTDM) and code division multiplexing (CDM), both suffering... View full abstract»

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  • Analysis of OFDM multiuser system over fading channels

    Publication Year: 2001, Page(s):773 - 776 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (344 KB) | HTML iconHTML

    Multiuser orthogonal frequency division multiplexing system (OFDM system) with time-domain synchronization error over fading channels is considered. Downlink and uplink of the proposed multiuser OFDM system channel are considered separately. The time-domain synchronization error's influence on the system BER is analysed View full abstract»

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  • Two and three dimensional images of shallow geological structures

    Publication Year: 2001, Page(s):434 - 435 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    The purposes of imaging are to gain some understanding of what a ground probing radar (GPR) image would look like, to facilitate interpretation and to test signal and image processing techniques. An interesting structure is the buried valley aquifer due to its potential for storing groundwater. This is investigated by simulation using ray tracing for two dimensional images and facet modelling for ... View full abstract»

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  • Redundancy resolution in tasks with parameterizable uncertainty

    Publication Year: 2001, Page(s):709 - 714 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB) | HTML iconHTML

    Redundant robots motion planning and control in uncertain task is addressed by model-based approach. Instead of controlling and adapting the environment to the robot or applying a complex visual servoing system, we model the redundancy resolution on the parameter spaces that quantify uncertainties of the task. The modeling tool is a successive approximation (SA). It provides very advantageous prop... View full abstract»

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  • On the influence of correlated Rayleigh-fading channel with capture over IEEE 802.11 WLANs

    Publication Year: 2001, Page(s):537 - 540 vol.2
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    Considering the flat Rayleigh-faded channel, we derived an analytical expression for the frame capture probability Pcapture assuming two discrete mean power levels (occurring with predefined probability) of frames at the receiver. The simulations prove the validity of such a capture model assuming 24 dB difference of the two power levels. The expected through improvement under capture ... View full abstract»

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  • Processing FM signal using digital baseband methods

    Publication Year: 2001, Page(s):587 - 590 vol.2
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    We present a demodulation method for FM signals using baseband techniques. The hardware and software resources available have to be considered in working with both mathematical and simulation models: computational power, processing time, word data length. We consider a digital signal processor as a possible hardware structure to implement the entire method View full abstract»

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  • Implementation of radar CFAR-based target detection algorithm in a real-time multiprocessor environment

    Publication Year: 2001, Page(s):749 - 752 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB) | HTML iconHTML

    The implementation of radar CFAR-based target detection algorithm in a real-time multiprocessor environment is presented. For this purpose, a radar extractor has been developed. Two digital signal processors (DSPs), installed on a target board are used, with a PC computer as a host. The complete detection algorithm is divided into two parts and is being executed in real-time on the target board. T... View full abstract»

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  • A distributed system for circuit simulation

    Publication Year: 2001, Page(s):467 - 470 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    The paper presents a created distributed system for circuit simulation, based on ORCAD 386+ and PSPICE 5.0, which represents one tool of the geographically distributed teaching laboratory for microelectronic design and testing, developed for the project "Connection of the Computer-Aided Design Laboratory in Telecommunications faculty, Technical University-Sofia to an European network for integrate... View full abstract»

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  • Homodyne PSK receivers with a Costas loop for high-speed long-haul communications

    Publication Year: 2001, Page(s):769 - 772 vol.2
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    In this paper a realistic model for the performance determination of a homodyne PSK receiver with a Costas loop for long-haul communication is proposed. The paper reports the receiver sensitivity, linewidth requirements and power penalties taking into account the laser phase noise, ASE noise and shot noise of corresponding photodiodes. Expressions for the phase error variance and receiver bit-erro... View full abstract»

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  • CAD for broadband wireless access design

    Publication Year: 2001, Page(s):525 - 528 vol.2
    Cited by:  Papers (1)
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    The paper looks at the multifunctional and specialized CAD systems of leading companies for use in the field of broadband wireless equipment design. The basic characteristics of appropriate software and design systems are shown including the most typical examples for their implementation View full abstract»

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  • Psycho-visual model of the human optical system as base for lossy-lossless compression of visual information

    Publication Year: 2001, Page(s):430 - 433 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB) | HTML iconHTML

    One piece of information can often be expressed in different ways. Information is mostly stored directly, and can then also be interpreted directly. However, since each information can also always be assigned to a certain context, there is a close assumption that each information is also redundant. An adapted mathematical context-oriented transformation enables, therefore, a secured increase to th... View full abstract»

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  • Generalized sample-hold functions approach to filtering and control

    Publication Year: 2001, Page(s):705 - 708 vol.2
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    This paper investigates the use of the generalized sampled-data hold functions in some filtering and control tasks. The idea of this special kind of the reconstruction process is to use the sampled-data feedback, but considering the hold function itself as a design parameter. The analysis is illustrated by an example View full abstract»

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  • Fiber optic refractometer for liquid index of refraction measurements

    Publication Year: 2001, Page(s):489 - 492 vol.2
    Cited by:  Papers (7)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB) | HTML iconHTML

    Refractometers frequently are used for medical, pharmaceutical, industrial fluid, petrochemical, plastic, food, and beverage industry applications. For example, they are used for measuring the concentrations of aqueous solutions: as the concentration or density of a solute increase, the refractive index increases proportionately. The paper describe development work of a flexible fiber optic refrac... View full abstract»

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  • Advances in subspace eigenanalysis based algorithms: from 1D toward 3D superresolution techniques

    Publication Year: 2001, Page(s):547 - 554 vol.2
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    An overview of two superresolution methods, MUSIC and ESPRIT, for the ID case is firstly given. Afterwards, an extension of these algorithms to the three-dimensional case is proposed. New formulations for the signal model, data resampling, spatial smoothing method and estimate expression are provided. Although many applications can be considered in the areas of radar and wireless communications, o... View full abstract»

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  • Selection of supply voltage form for amplifiers in CATV

    Publication Year: 2001, Page(s):533 - 536 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (320 KB) | HTML iconHTML

    This paper treats the problems of the supply tension influence on amplifiers in a CATV network. We consider the connection between the supply tension form and power losses due to turning of transistors. We consider the influence of the supply tension form on the components which transfer the signals in the amplifiers. We are concerned with the connection between spectral range of frequency charact... View full abstract»

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  • Transmission limitations of WDM transmission systems with dispersion compensated links in the presence of fiber nonlinearities

    Publication Year: 2001, Page(s):496 - 499 vol.2
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB) | HTML iconHTML

    The simple expressions appropriate to study the transmission limitations of WDM systems with dispersion compensated links using inline optical amplifiers imposed by fiber nonlinearities are derived . Two important nonlinear effects, four-wave mixing (FWM) and stimulated Raman scattering (SRS) in the presence of amplifier spontaneous emission (ASE) noise are taken into consideration. The maximum po... View full abstract»

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  • Error-event detection codes for partial response channels

    Publication Year: 2001, Page(s):562 - 566 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (400 KB) | HTML iconHTML

    With an annual increase in density of 100% approaching superparamagnetic limits much stronger error control systems are required in read channels for hard drives. A technique is presented for correcting long errors that are the result of highly colored noise typical for modern magnetic heads and media. We introduce a sofic system-based construction of very high rate codes for correcting errors fro... View full abstract»

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