IEEE Transactions on Circuits and Systems I: Fundamental Theory and Applications

Volume 40 Issue 7 • Jul 1993

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Displaying Results 1 - 9 of 9
  • Optimization-a powerful tool for analysis and design

    Publication Year: 1993, Page(s):431 - 439
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (724 KB)

    An introduction to the theory and application of optimization as a general-purpose problem-solving tool is presented. The use of optimization is greatly enhanced through the development of a general problem-formulation structure which is applicable to a wide range of problems. The work describes the use of various optimization strategies, and includes several examples of the use of optimization to... View full abstract»

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  • On construction of a bank of robust Hurwitz polynomials

    Publication Year: 1993, Page(s):493 - 496
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Numerical methods to generate perturbational schemes that change the coefficient(s) of a Hurwitz polynomial, and thus to construct a bank of robust such polynomials, are presented. It is based on a set of sufficient conditions that are used iteratively to determine the coefficients directly View full abstract»

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  • The validity of Kirchhoff's laws for a class of nonlinear transfinite networks

    Publication Year: 1993, Page(s):477 - 482
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Kirchhoff's laws hold only sometimes in transfinite networks. For nonlinear networks, there are presently just a few preliminary results regarding when they do hold. This work establishes more explicit and broader conditions for their validity in nonlinear transfinite networks. It also presents a fundamental theorem for the existence and uniqueness of the voltage-current regime in such a network. ... View full abstract»

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  • The variable gain bootstrap active load: a new approach to amplifier voltage gain enhancement and control

    Publication Year: 1993, Page(s):440 - 448
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (780 KB)

    This work describes a novel technique for obtaining controllable, high-voltage gain in amplifier circuits where current mirrors and cascading techniques cannot be used. An example of this is in high-frequency design where suitable complementary devices are generally not available. Although the method was originally intended for use in the design of operational transconductance amplifiers (OTAs) im... View full abstract»

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  • The design of two-channel lattice-structure perfect-reconstruction filter banks using powers-of-two coefficients

    Publication Year: 1993, Page(s):497 - 499
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    An optimization technique is presented for the design of two-channel lattice-structure perfect-reconstruction filter banks with powers-of-two coefficients. The filter coefficients are represented by a canonic signed-digit (CSD) code. The proposed technique requires the original optimal infinite-precision coefficients as the starting point, and searches for the set of CSD coefficients that minimize... View full abstract»

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  • A high-level approach to test generation

    Publication Year: 1993, Page(s):483 - 492
    Cited by:  Papers (2)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (788 KB)

    A high-level test generation algorithm based upon the branch and bound search procedure is presented. The algorithm is described in detail, highlighting the various tradeoffs that are involved. A complete dependency-directed backtracking scheme that has significant advantage over chronological backtracking is introduced. Different uses for the algorithm are presented to show its versatility. Resul... View full abstract»

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  • Design of analog and digital data transmission filters

    Publication Year: 1993, Page(s):449 - 460
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (632 KB)

    This work presents a design technique for continuous-time and discrete-time data transmission filters. These are pulse shaping networks allowing transmission with minimum intersymbol interference in the time domain, while providing high amplitude selectivity and a close approximation to a constant group delay over the band of interest in the frequency domain. The technique gives the denominator of... View full abstract»

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  • Canonical representation: from piecewise-linear function to piecewise-smooth functions

    Publication Year: 1993, Page(s):461 - 468
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    The canonical representation of piecewise-linear (PWL) functions provides a global compact formulation of continuous PWL functions, which has significant advantages in the research and applications concerning nonlinear systems. This work studies the generalization of the canonical representation from PWL functions to piecewise-smooth (PWS) functions. First a class of PWS functions, called the regu... View full abstract»

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  • Analog rank filtering

    Publication Year: 1993, Page(s):469 - 476
    Cited by:  Papers (14)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    The main task in rank filtering and many other nonlinear filtering operations is sorting. In this work, a nonlinear dynamical system for this operation is proposed. The sorting problem is embedded in a higher dimensional matrix-valued problem. An equivalent analog circuit consists of basic building blocks like adders, multipliers, and integrators which set up basic nonlinear processing cells. Thes... View full abstract»

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