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IEEE Transactions on Circuits and Systems II: Analog and Digital Signal Processing

Issue 10 • Date Oct 1995

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Displaying Results 1 - 10 of 10
  • Short-time Fourier transforms using cascade filter structures

    Publication Year: 1995, Page(s):631 - 641
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (720 KB)

    A wide class of short-time Fourier transforms (STFT's), or spectrograms, can be obtained by applying an infinite-length analysis window, corresponding to an impulse response of an IIR filter, at every data sample and then taking the Fourier transform. The use of the cascade form realization of the analysis window allows simple and recursive generations of a number of distinct STFT's with different... View full abstract»

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  • Minimum denominator-multiplier pipelined recursive digital filters

    Publication Year: 1995, Page(s):666 - 672
    Cited by:  Papers (2)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (600 KB)

    Recursive digital filters implemented in direct form, transpose direct form, or cascade form can be pipelined with a new minimum denominator-multiplier (MDM) algorithmic transformation pipelining technique that permits hybrid pipelined solutions between the clustered look-ahead and scattered look-ahead techniques introduced by Parhi and Messerschmitt (1989). The new MDM technique makes use of asym... View full abstract»

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  • Analog-input digital phase-locked loops for precise frequency and phase demodulation

    Publication Year: 1995, Page(s):621 - 630
    Cited by:  Papers (26)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (816 KB)

    Most conventional analog-input digital phase-locked loops (ADPLL's) suffer from the effect of in-loop quantization and from nonlinear behavior caused by the approximations inherent in practical digitally controlled oscillators (DCO's). The resulting errors limit the accuracy of ADPLL-based frequency demodulation and usually make ADPLL-based phase demodulation impractical because of severe phase-dr... View full abstract»

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  • An improved model for the slewing behavior of opamps

    Publication Year: 1995, Page(s):679 - 681
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (232 KB)

    A new time-domain model for the slewing behavior of two-stage opamps is presented. This model includes the effects of the load capacitance, compensation capacitance, device sizes and the nonlinear behavior of the transistors during the slewing period. This model improves on the commonly used constant current models and allows for more predictable designs. The model shows good agreement with simula... View full abstract»

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  • A performance analysis of pulse stream neural and fuzzy computing systems

    Publication Year: 1995, Page(s):642 - 660
    Cited by:  Papers (39)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1592 KB)

    This paper presents an annotated overview of existing hardware implementations of artificial neural systems based on “pulse stream” modulations. Pulse streams are quasi-periodic binary waveforms which convey analog information on waveform timing. The theoretical bases of pulse stream computation are shown for the major techniques, and basic circuits are described for most neural and fu... View full abstract»

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  • Design of optimal digital filter using a parallel genetic algorithm

    Publication Year: 1995, Page(s):673 - 675
    Cited by:  Papers (34)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (252 KB)

    This paper describes the use of a parallel genetic algorithm to design a direct form of a finite word length (FWL), finite impulse response (FIR) low pass digital filter. The results of the proposed design technique are compared to two other proposed methods, an integer programming technique and roundoff of the optimal floating point set of coefficients. Using the Chebyshev metric as the compariso... View full abstract»

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  • A high-speed realization of a residue to binary number system converter

    Publication Year: 1995, Page(s):661 - 663
    Cited by:  Papers (96)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (272 KB)

    This paper proposes a new high-speed ROM-less residue-to-binary converter for the three moduli residue number systems (RNS) of the form {2n-1, 2n, 2n+1}. Unlike any other converter, its delay involves the time of only one 1's complement addition of two 2n-bit numbers which is only 2/3 of the binary range of the RNS equal to a=3n. Thus, it is potentially the fastest... View full abstract»

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  • Trainable FIR-order statistic hybrid filters

    Publication Year: 1995, Page(s):663 - 666
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    In this paper, an optimization algorithm for FIR-order statistic hybrid (FIR-OS) filters is introduced. The algorithm minimizes the total cost function of the filter output by dividing the training set into subsets using soft order statistics criteria and then applying conjugate gradient search for the subfilters. The amplitude extraction of pulses acquired from high energy physics detectors is pr... View full abstract»

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  • A fast 2-D stability test procedure based on FFT and its computational complexity

    Publication Year: 1995, Page(s):676 - 678
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (196 KB)

    This note presents a fast stability test algorithm for two-dimensional (2D) systems which requires max {O(m2), O(mn 2 log2 mn), O(mn4)} multiplications to test the stability of 1/(1+Σi=0 i+jnΣ j=0 ≠0m bijz1iz2j) View full abstract»

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  • A new composite gradient algorithm to achieve global convergence

    Publication Year: 1995, Page(s):681 - 684
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (356 KB)

    Insufficient-order system identification can result in a multimodal mean square error surface on which a gradient-type algorithm may converge to a local minimum. In this letter a new composite gradient algorithm (CGA) is presented which is due to achieve global convergence when the output error surface contains local minima. The proposed algorithm combines the useful properties of the output error... View full abstract»

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Aims & Scope

This title ceased production in 2003. The current updated title is IEEE Transactions on Circuits and Systems II: Express Briefs.

Full Aims & Scope