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Telecommunications in Modern Satellite, Cable and Broadcasting Services, 1999. 4th International Conference on

13-15 Oct. 1999

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  • 4th International Conference on Telecommunications in Modern Satellite, Cable and Broadcasting Services

    Publication Year: 1999, Page(s):0_3 - xvi
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    Freely Available from IEEE
  • Author index

    Publication Year: 1999, Page(s):681 - 682
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    Freely Available from IEEE
  • Available link isolation between geostationary satellite systems

    Publication Year: 1999, Page(s):419 - 422 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (412 KB)

    Frequency coordination of satellite communication systems continues to be a complicated exercise. This paper deals with the available link isolation parameter between geostationary satellite systems which plays a crucial role in an alternative simplified coordination procedure View full abstract»

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  • Pulse jamming of GPS receiver

    Publication Year: 1999, Page(s):415 - 418 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (520 KB)

    In this paper the pulse jamming of GPS receiver has been analyzed. The influence of key pulse signal parameters, duty cycle and pulse repetition frequency, on jamming efficiency during tracking and acquisition phase has been proved View full abstract»

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  • Application of wavelet analysis to seismic signals

    Publication Year: 1999, Page(s):612 - 615 vol.2
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (548 KB)

    The squared modulus of the wavelet transform called the scalogram is used for decomposing the seismic signal energy into the time-scaling plane. For better representation the scale is converted into frequency. The seismic signals are obtained from hitting a metal sphere against the lawn. After a number of experiments, both the mean value of the energy center frequencies and standard deviation are ... View full abstract»

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  • Minimax envelope constrained filter for radar and communications applications

    Publication Year: 1999, Page(s):367 - 369 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    The envelope constrained filter (ECF) is a useful approach to filter design. The authors of the original concept have proposed algorithms for solving the ECF design problem as well. These algorithms use the tools of nonlinear programming. They are based on a feasible solution assumption. In other words, they perform well when the solution can be found. In most radar applications, and in a great nu... View full abstract»

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  • The analysis of satellite data of remote Earth sensing

    Publication Year: 1999, Page(s):411 - 414 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    In the paper methods of processing spectrozonal images, obtained with the scanner systems of the “Resurs 01-3” satellite, are considered. The analysis using artificial neutral networks to estimate parameters and a classification of Earth surface types from the results of satellite measurements has been made. As an example, use has been made of space images of Yugoslavia, obtained with ... View full abstract»

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  • Large signal characterization of heterojunction bipolar transistors

    Publication Year: 1999, Page(s):378 - 381 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (380 KB)

    A large signal Eber-Moll model for the analysis of an AlGaAs/GaAs heterojunction bipolar transistor (HBT) is presented. The parasitic elements of the equivalent circuit are extracted from the S-parameter measurements under cutoff bias conditions. A semi-analytical approach is used to extract the intrinsic parameters of the small signal equivalent circuit. The equivalent circuit clement parameters ... View full abstract»

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  • Matrix multiplication on non-planar systolic arrays

    Publication Year: 1999, Page(s):514 - 517 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (248 KB)

    A modification of the standard design procedure for mapping nested loop algorithms into systolic arrays is described in this article. This modification enables the authors to obtain non-planar systolic arrays for matrix multiplication with an optimal number of processing elements for a given problem size. The modification is based on composition of two linear mappings View full abstract»

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  • The Common Information Model (CIM) standard - an analysis of features and open issues

    Publication Year: 1999, Page(s):677 - 680 vol.2
    Cited by:  Papers (3)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (468 KB)

    In this paper an analysis of the Common Information Model (CIM) standard for object-oriented information specification in network and system management is given, including a short discussion of several important potential benefits and open issues, and a presentation of original extensions of the standard-solutions to some open issues View full abstract»

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  • Determining of ATM traffic descriptors in various interworking scenarios

    Publication Year: 1999, Page(s):584 - 587 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    This paper addresses the conversion effects of non-ATM to ATM services on the generated ATM traffic features. Frame relay-ATM interworking, circuit emulation service (CES) and LAN interconnection over an ATM backbone, have been investigated. The determination of ATM traffic descriptors after the conversion is presented, as well as setting of the generic cell rate algorithm (GCRA) policing paramete... View full abstract»

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  • Impulse noise removal using linear prediction model

    Publication Year: 1999, Page(s):608 - 611 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1332 KB)

    Noise removal is an important problem in many applications. In this paper a new two-step scheme of the decision-based impulse noise removal method by means of contaminated pixel detection is proposed and comparison with direct order statistic filtering is given. The proposed methods satisfy both objective and subjective image quality View full abstract»

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  • From FFT to decision diagrams in calculation of spectral transforms for discrete functions

    Publication Year: 1999, Page(s):472 - 479 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (644 KB)

    In this tutorial paper, we discuss relationships between FFT-like algorithms and methods for the calculation of spectral transforms through decision diagrams (DDs). It is pointed out that in both FFT-like algorithms and DDs methods, the same basic FFT operations are used. However, these operations are performed over different data structures used to represent the processed signals. We have shown t... View full abstract»

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  • Variable load at antenna servosystem: analytical approach with time varying models

    Publication Year: 1999, Page(s):657 - 660 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (212 KB)

    The conditions for a polynomial response and obtaining its analytical expression are considered. The responses in a forced regime of work arise from a linear input/output system of second order with varying coefficients in time of a polynomial type. The necessary and sufficient conditions have been obtained for the forced response of the system to be of a polynomial shape in time. An analytical ex... View full abstract»

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  • High bandwidth DRAM memories for DSP

    Publication Year: 1999, Page(s):502 - 505 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (524 KB)

    DSP and multimedia applications can be very demanding of memory parameters. Typical requirements of memory parameters in such applications are quoted in the paper. Based on these requirements, two types of contemporary DRAM memories, Rambus DRAM and SLDRAM, are considered as candidate memories in such systems. The results given in the paper show that these memories can satisfy very demanding requi... View full abstract»

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  • Pulse compression radar: self-clutter suppression using modified RLS algorithm

    Publication Year: 1999, Page(s):363 - 366 vol.2
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    The design procedure for a self-clutter suppression filter by the modified recursive least square method is presented. The main advantage of this approach is the possibility to compromise between two criteria: the peak sidelobe level and mean square sidelobe level View full abstract»

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  • MESFET noise modeling based on noise wave temperatures

    Publication Year: 1999, Page(s):407 - 410 vol.2
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    A simple procedure for the extraction of intrinsic noise wave temperatures in the wave representations of microwave transistors is presented in this paper. A set of equations describing the noise parameters as a function of three equivalent noise temperatures is implemented within the circuit simulator Libra. After that, the wave noise model is defined as a new user-defined element of the Libra pr... View full abstract»

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  • Performance analysis of amMFSK frequency hopping system in the presence of interference

    Publication Year: 1999, Page(s):552 - 557 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (364 KB)

    We analyze the performance of a modification of a FH/MFSK system, with noncoherent detection, that includes a multitone multiamplitude MFSK signal which is designated as amMFSK modulation. The results demonstrate that under the large range of the signal and interference parameters the new system offers better performance View full abstract»

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  • Modal density of sound pressure level in a room

    Publication Year: 1999, Page(s):641 - 644 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    Modal analysis of the sound field in a rectangular room at low frequencies, based on the physics of the modal sound field, is presented in this paper. The eigenfrequencies and the modal density, which can be calculated with the well-known formulas and obtained by the calculated characteristic sound pressure level for three rooms with the same volume but different dimensions, is analysed. One of th... View full abstract»

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  • Satellite antenna positioning using two inputs single output robust fuzzy controller

    Publication Year: 1999, Page(s):427 - 429 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    In this paper, a procedure for robust TISO fuzzy sliding mode controller design is described. The control goal is satellite antenna position control in the presence of external disturbances, such as weather conditions. The effectiveness of the robust fuzzy control system is verified using digital simulation View full abstract»

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  • Realizations of a digital clock recovery in a 8 Mbit/s 4-FSK digital radio relay system

    Publication Year: 1999, Page(s):374 - 377 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (376 KB)

    The realization of a digital clock recovery circuit (DCR) for 2 and 8 Mbit/s digital radio-relay systems (DRRS) with 4-FSK modulation is described. This circuit is realized in lattice ispLSI devices, with speeds 60 MHz and 110 MHz, which means that gate delays are near the phase increment of the digital oscillator. The highlights of this realization are: (i) reduced influence of large zero crossin... View full abstract»

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  • Performances of the multiplexed Pareto streams

    Publication Year: 1999, Page(s):528 - 531 vol.2
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (296 KB)

    This paper concentrates on the performance of the round-robin scheduler in the case of bounded Pareto (BP) input streams and ATM multiplexer. Inputs were on-off modeled with BP: interarrival times, random “on” and “off” intervals. Input sequences, as well as the output ones, have been investigated from the fractal/multifractal viewpoint. It was proved that the fractal prope... View full abstract»

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  • New microscan receiver concept

    Publication Year: 1999, Page(s):665 - 668 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (336 KB)

    A microscan receiver (MR) algorithm for compression filter design with reduced sidelobes and controlled resolution is proposed. The basis for the new approach is the introduction of cross-ambiguity function in MR operation interpretation. Utilization of the DIRLS (Doppler optimized iteractive reweighted least square) algorithm is proposed for solving the sidelobe problem View full abstract»

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  • Object oriented approach to the technology processes simulation of devices and ICs used in telecom applications

    Publication Year: 1999, Page(s):510 - 513 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (620 KB)

    In this paper, the methodology for object oriented (OO) projection of the software architecture is introduced and an object model of a conventional semiconductor device is described from its fabrication technology point of view. Also, the development of the standard Windows 95/NT application by using Visual BASIC 6.0 and OO programming concepts is presented. The application is intended to be a tec... View full abstract»

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  • Adaptive denoising in telecommunications

    Publication Year: 1999, Page(s):434 - 443 vol.2
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    In 1992 David Donoho has introduced the term denoising in connection with the adaptive nonlinear filtering in the discrete wavelets transform domain. Despite it's advantages this method has not been extensively used yet in the telecommunications field. The aim of this paper is to clarify some aspects of this method from the engineer's point of view, to improve it and to apply it in telecommunicati... View full abstract»

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