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

Volume 40 Issue 6 • Jun 1993

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Displaying Results 1 - 7 of 7
  • A new adaptive recursive delay filter

    Publication Year: 1993, Page(s):426 - 429
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (264 KB)

    An adaptive recursive filter based on a sequential approach of identifying each delay, pole location and coefficient value is proposed. It is observed that if the unknown system to be modeled contains long decaying intervals in its impulse response, this filter has better performance than adaptive FIR (finite impulse response) delay filters or conventional approaches. Its stability monitoring and ... View full abstract»

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  • On the optimization of MOS circuits

    Publication Year: 1993, Page(s):412 - 422
    Cited by:  Papers (17)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (708 KB)

    Optimizing the number of transistors in a complex MOS gate, which is important for minimizing chip area and delay in VLSI designs, is an NP-complete problem. The worst-case computational complexity of graph-oriented algorithms used in existing approaches is exponential in the number of transistors. This problem is addressed through the use of bridging switches. A theory and an algorithm for optimi... View full abstract»

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  • Genetic algorithm for CNN template learning

    Publication Year: 1993, Page(s):392 - 402
    Cited by:  Papers (104)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    A learning algorithm for space invariant cellular neural networks (CNNs) is described. Learning is formulated as an optimization problem. Exploration of any specified domain of stable CNNs is possible by the current approach. Templates are derived using a genetic optimization algorithm. Details of the algorithm are discussed and several application results are shown. Using this algorithm, propagat... View full abstract»

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  • Stability of polynomials with time-variant coefficients

    Publication Year: 1993, Page(s):423 - 426
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (308 KB)

    The problem of global asymptotic stability of a time-variant m th-order difference equation is addressed. Stable regions in the parameter space are derived for two cases: the case of a time-invariant parameter region, and the case of a time-variant parameter region. These results find applications in the area of adaptive digital filters View full abstract»

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  • Global bifurcation and chaos from automatic gain control loops

    Publication Year: 1993, Page(s):403 - 412
    Cited by:  Papers (9)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (696 KB)

    The dynamics of the automatic gain control (AGC) loops which employ variable-gain amplifiers with a square control law are studied. The selected loop filters are of second-order low-pass type. The existence of global homoclinic bifurcation and Smale horseshoe chaos are proved without the traditional small-signal model assumption. To investigate systems that are monitored during discrete-time inter... View full abstract»

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  • QR-decomposition based algorithms for adaptive Volterra filtering

    Publication Year: 1993, Page(s):372 - 382
    Cited by:  Papers (20)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    A QR-recursive-least squares (RLS) adaptive algorithm for non-linear filtering is presented. The algorithm is based solely on Givens rotation. Hence the algorithm is numerically stable and highly amenable to parallel implementations. The computational complexity of the algorithm is comparable to that of the fast transversal Volterra filters. The algorithm is based on a truncated second-order Volte... View full abstract»

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  • Single-capacitor phase-controlled series resonant converter

    Publication Year: 1993, Page(s):383 - 391
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (660 KB)

    A new phase-controlled series resonant, DC/DC converter is described, analyzed, and experimentally verified. The circuit comprises a phase-controlled inverter and a Class D current-driven rectifier. The phase-controlled inverter consists of two switching legs, two resonant inductors, and a single resonant capacitor connected in series with an AC load. The phase shift between the voltages that driv... View full abstract»

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