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IEEE Transactions on Circuits and Systems

Issue 12 • Date Dec 1988

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Displaying Results 1 - 13 of 13
  • On the stability of two-dimensional continuous systems

    Publication Year: 1988, Page(s):1487 - 1500
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (800 KB)

    A necessary and sufficient approach is presented to check bounded-input-bounded-output stability of 2-D continuous systems. The approach works by obtaining the impulse response through the inverse 2-D Laplace transformation. It is shown that by using one-variable reactance transformation (or spectral transformation) to obtain the 2-D continuous transfer function, stability is, in general, not pres... View full abstract»

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  • On synthesizable multidimensional lossless two-ports

    Publication Year: 1988, Page(s):1478 - 1486
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (812 KB)

    A study is presented of the problems of factorization of the scattering matrix and the scattering hybrid matrix associated with lumped multidimensional lossless two-port networks into two matrices of similar types. Necessary and sufficient conditions for such factorability are derived. Special attention is paid to the factorization of scattering matrices when the two-port is symmetric and antimetr... View full abstract»

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  • A new filter synthesis technique-the hourglass

    Publication Year: 1988, Page(s):1469 - 1477
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    A synthesis procedure called the hourglass algorithm is discussed. This algorithm produced filters that have better passband and stopband characteristics than conventional maximally flat filters. It is argued that its use throughout filter design unifies, simplifies, and systematizes synthesis procedures. The improvement in the passband achieved by the hourglass over the maximally-flat filter is d... View full abstract»

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  • A single D-FET 4-QAM with SC technology

    Publication Year: 1988, Page(s):1551 - 1552
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (104 KB)

    A four-quadrant analog multiplier is described that realizes the multiplication of two signals using the triode-region characteristics of a depletion field-effect transistor (D-FET). The design uses only a single D-FET and associated switched-capacitor circuits. As a result, not only has a simple structure been obtained but also the requirement for matching of the D-FETs (which is inherently impos... View full abstract»

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  • Design of vector quantizers using simulated annealing

    Publication Year: 1988
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    An algorithm for designing block or vector quantizers using the method of simulated annealing is proposed. The algorithm seeks to find the quantizer which minimizes the average distortion. Two examples are given showing the validity of the proposed algorithm View full abstract»

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  • 2-D partial fraction expansions and minimal commutative realizations

    Publication Year: 1988, Page(s):1533 - 1539
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (552 KB)

    An analysis is presented of the class of rational functions in two variables realized by two-dimensional state-space models satisfying the commutativity assumption A1A2= A2A1. A complete characterization of these transfer functions is given in terms of the existence of a suitable partial fraction expansion. It is shown... View full abstract»

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  • The general biquadratic transformation of polynomials

    Publication Year: 1988, Page(s):1547 - 1549
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    An explicit formula is derived for establishing the relationship between the original coefficients of a single-variable polynomial and the coefficients of the transformed polynomial upon application of the general biquadratic transformation. It is shown that previously known results for general bilinear transformations can be considered special cases of the derived relationship. The extension to t... View full abstract»

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  • State-space family realization of 2-D linear digital systems

    Publication Year: 1988, Page(s):1528 - 1533
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (396 KB)

    A procedure is proposed for obtaining a family of state-space models from a two-dimensional transfer function matrix. The resulting model is in terms of an arbitrary parameter a. By substituting different values of a, different realizations with the same transfer function matrix are obtained. The proposed technique utilizes the method given by R. Eising (IEEE Trans. Automat. Cont... View full abstract»

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  • Nominal design of integrated circuits on circuit level by an interactive improvement method

    Publication Year: 1988, Page(s):1501 - 1511
    Cited by:  Papers (8)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (804 KB)

    A generalized approach is introduced for the nominal design of integrated circuits using parametric optimization. The optimization method consists of several interactive improvement steps based on circuit simulation and gradient evaluation techniques. Both the overdetermined and underdetermined optimization problems arising from different design situations are discussed. Criteria are given to dedu... View full abstract»

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  • Analysis and parameter estimation of nonlinear systems with Hammerstein model using Taylor series approach

    Publication Year: 1988, Page(s):1539 - 1541
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (180 KB)

    The application of the Taylor series approach is considered for the analysis and estimation of the unknown parameters of nonlinear systems. The approach uses Taylor series expansions and the least-squares method as well as the operational property of the Kronecker product. Direct and efficient computational algorithms, which are convenient and adaptable to digital programming, are developed. As a ... View full abstract»

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  • The double hook [nonlinear chaotic circuits]

    Publication Year: 1988, Page(s):1512 - 1522
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    A new strange attractor exhibited by the same dynamic equation governing L.O. Chua's circuit (ibid., vol.CAS-33, p.1073-118, Nov. 1986) but with a totally different parameter set is described. The main difference between the new double-hook attractor and the double scroll is that the vector field of the new attractor has three real eigenvalues at the origin, as opposed to the one real and the two ... View full abstract»

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  • On the design of optimal equiripple FIR digital filters for data transmission applications

    Publication Year: 1988, Page(s):1542 - 1546
    Cited by:  Papers (54)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    An improved linear programming algorithm is required for the design of finite impulse response (FIR) digital filters. This algorithm avoids the numerical ill-conditioning problems which commonly occur due to the necessity to sample the frequency response on a very dense grid of points for high-order filters. This technique is applied to the design of equiripple FIR Nyquist filters and equiripple F... View full abstract»

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  • On limit cycles in feedback polynomial systems

    Publication Year: 1988, Page(s):1523 - 1528
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (444 KB)

    The problem of the existence and of the uncertainty of limit cycles in nonlinear feedback systems is examined. If approximate solution obtained using the describing function method is assumed to be known for a class of multiloop polynomial systems then sufficient conditions are derived to ensure in the neighborhood the existence of a true periodic solution and to evaluate its corresponding bounds.... View full abstract»

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