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IEEE Transactions on Circuits and Systems II: Express Briefs

Issue 8 • Date Aug. 2004

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Displaying Results 1 - 16 of 16
  • Table of contents

    Publication Year: 2004, Page(s): c1
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs publication information

    Publication Year: 2004, Page(s): c2
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  • Synchronization and input recovery in digital nonlinear systems

    Publication Year: 2004, Page(s):393 - 399
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB) | HTML iconHTML

    This paper is devoted to the simultaneous synchronization and input reconstruction in nonlinear discrete-time models. To deal with these, we propose an observer-based approach for two classes of dynamical systems that describe a large wide of nonlinear models. First, we consider the general case of nonlinear dynamics where the inputs to be reconstructed introduce nonlinearly into the model. The se... View full abstract»

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  • Piecewise-exponential approximation for fast time-domain simulation of 2-D cellular neural networks

    Publication Year: 2004, Page(s):400 - 405
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (208 KB) | HTML iconHTML

    Cellular neural networks (CNNs) were introduced as promising image processing systems. However, since analytical design techniques are rarely available, extensive simulation is the main practical tool for developing significant applications. This paper presents a new algorithm for fast simulation of large-scale CNNs. It is based on the discretization of the sigmoid generating the output from the s... View full abstract»

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  • Model reduction of uncertain FIR discrete-time systems

    Publication Year: 2004, Page(s):406 - 411
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB) | HTML iconHTML

    Model reduction of high-order polynomial systems is considered. The main novelty of the paper is that the polynomial coefficients are assumed to be known only within given intervals. The resulted reduced system is characterized by a fixed-coefficients polynomial. First, the meaning of such a model reduction is defined. Then, applying a novel approach, the maximal "distance" (error) between the pol... View full abstract»

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  • On the stability of the pulsewidth-modulated C´uk converter

    Publication Year: 2004, Page(s):412 - 420
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB) | HTML iconHTML

    It has been observed that a stabilizing controller for the state-space-average model of a pulsewidth-modulated (PWM) DC-DC converter does not automatically imply a stabilizing controller for the DC-DC converter itself, especially in the case of the C´uk converter. By applying multifrequency averaging as a generalization of the state-space averaging technique, the stationary periodic signals ... View full abstract»

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  • First-order sensitivity of complementary diplexers

    Publication Year: 2004, Page(s):421 - 425
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (176 KB) | HTML iconHTML

    This paper provides sensitivity analysis of complementary diplexers which are used for dividing the frequency spectrum into two adjacent frequency bands. Analytical expressions of the semirelative first-order sensitivity of the transducer losses are derived. These sensitivity expressions indicate that the passband loss sensitivity of a complementary diplexer is substantially lower than that of dou... View full abstract»

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  • Two-port ideal power transferitors: a unified introduction to ideal transformer and gyrator

    Publication Year: 2004, Page(s):426 - 429
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (120 KB) | HTML iconHTML

    A unified approach to ideal transformer and gyrator is proposed. They are presented as the only two ports belonging to the class of ideal power transferitors, i.e., the only two ports that absorb instantaneous power from one port and supply the same amount of instantaneous power from the other port. By exploiting the transmission matrix, this approach evidences similarities and differences between... View full abstract»

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  • Realization of modular multidimensional complex digital filters using GIC concept

    Publication Year: 2004, Page(s):430 - 435
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (200 KB) | HTML iconHTML

    It is known that complex digital filters possess certain advantages over real digital filters in processing complex signals such as increased computational speed and efficiency. In this paper, a simple and systematic procedure which can be implemented through a computer program is presented for realizing a specific class of multidimensional (M-D) complex digital filters. The proposed filter struct... View full abstract»

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  • Output capacitor stability study on a voltage-mode buck regulator using system-poles approach

    Publication Year: 2004, Page(s):436 - 441
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (496 KB) | HTML iconHTML

    System poles approach for pulsewidth-modulated (PWM) dc/dc converters analysis is developed making use of the sensitivity matrix. It combines both small-signal analysis for stability assessment and large-signal analysis for wide operating condition. This paper is particularly focused in stability study on the output capacitor capacitance and equivalent series resistance (ESR) in a buck regulator u... View full abstract»

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  • Fast detection of instability in sigma-delta modulators based on unstable embedded limit cycles

    Publication Year: 2004, Page(s):442 - 449
    Cited by:  Papers (7)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB) | HTML iconHTML

    As a sequel to a previous study (Wong and Ng) on the nonlinear dynamical behavior of low-pass, high-order (order > 2), single-bit ΣΔ modulators with distinct unit-circle noise transfer function zeros, this paper proposes a novel scheme for the fast detection of unstable operation in these modulators under general time-varying input. The scheme is based on the variation of unstable embe... View full abstract»

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  • 2005 IEEE International Symposium on Circuits and Systems (ISCAS 2005)

    Publication Year: 2004, Page(s): 450
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  • Leading the field since 1884 [advertisement]

    Publication Year: 2004, Page(s): 451
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  • Quality without compromise [advertisement]

    Publication Year: 2004, Page(s): 452
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  • IEEE Circuits and Systems Society Information

    Publication Year: 2004, Page(s): c3
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  • IEEE Transactions on Circuits and Systems—II: Express Briefs Information for authors

    Publication Year: 2004, Page(s): c4
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Aims & Scope

Part I will now contain regular papers focusing on all matters related to fundamental theory, applications, analog and digital signal processing. Part II will report on the latest significant results across all of these topic areas.

Full Aims & Scope

Meet Our Editors

Editor-in-Chief

Chi K. Michael Tse
Dept. of Electronic and Information Engineering
Hong Kong Polytechnic University
Hunghom, Hong Kong
cktse@ieee.org