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

Issue 4 • Date Apr 1998

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Displaying Results 1 - 12 of 12
  • FRC: a method for extending the resolution of Nyquist rate converters using oversampling

    Publication Year: 1998, Page(s):482 - 494
    Cited by:  Papers (23)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (340 KB)

    Nyquist rate converters have traditionally been used for low to moderate resolution data acquisition applications. In this paper, we describe a feedforward residue compensation (FRC) technique to extend the resolution of such converters using an oversampling modulator loop. Closed-form analytical expressions are developed to provide insight into the operation and limits on the resolution of such c... View full abstract»

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  • Linear phase and symmetries for multidimensional FIR filters over lattices

    Publication Year: 1998, Page(s):473 - 481
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    We present in this paper multidimensional FIR filters over arbitrary lattices having the linear phase property. The extended definitions of phase, group delay, and linear phase are first presented. This leads us to consider four types of filters as in the one-dimensional (1-D) case (symmetric or antisymmetric with odd or even support). The zeros in frequencies inherent to each type are presented. ... View full abstract»

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  • A new memoryless nonlinear gradient algorithm for a second-order adaptive IIR notch filter and its performance analysis

    Publication Year: 1998, Page(s):462 - 472
    Cited by:  Papers (32)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (424 KB)

    Adaptive infinite impulse-response (IIR) notch filters have been widely studied for many years. However, further efforts are still to be made to pursue new algorithms which work better than the conventional plain gradient algorithm but have little increase in complexity. In this paper, we employ the gradient linearization, Taylor series expansion, and calculus of variations to derive a novel memor... View full abstract»

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  • Vector computation of the discrete Fourier transform

    Publication Year: 1998, Page(s):449 - 461
    Cited by:  Papers (11)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (756 KB)

    Since the invention of fast algorithms for the computation of the discrete Fourier transform (DFT) by Cooley and Tukey (1965), the DFT has been widely used for the frequency-domain analysis and design of signals and systems in communications, digital signal processing, and in many other areas of science and engineering. While the Cooley-Tukey algorithms are simple, regular, and efficient, they hav... View full abstract»

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  • High-throughput block-matching VLSI architecture with low memory bandwidth

    Publication Year: 1998, Page(s):508 - 512
    Cited by:  Papers (9)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (184 KB)

    A full-search block-matching architecture which features high throughput, low data input lines, and low memory bandwidth is proposed. It reduces memory I/O requirements by the maximum reuse of search data using on-chip memory. It also promises a high throughput rate by the continuous calculation of all block distortions in a search area using two search data input flows without processing any inva... View full abstract»

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  • Recursive formulation of short-time discrete trigonometric transforms

    Publication Year: 1998, Page(s):525 - 527
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (92 KB)

    Recursive formulations of the moving-window discrete Fourier transform (DFT) are well known. However, recursive versions of other useful discrete transforms, like the moving-window discrete cosine transform (DCT), discrete sine transform (DST), or discrete Hartley transform (DHT), have not been developed so far. In this paper, second-order recursive expressions for the DCT, DST, and DHT, intended ... View full abstract»

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  • A real-time center-of-mass tracker circuit implemented by neuron MOS technology

    Publication Year: 1998, Page(s):495 - 503
    Cited by:  Papers (13)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (276 KB)

    A new architecture integrated circuit has been developed as a key element of a system that can real-time track the center of mass of an moving image on a two-dimensional (2-D) pixel array. The circuit has been implemented using a high-functionality transistor called neuron MOSFET (neuMOS or νMOS for short), hence having a very simple circuit configuration. A quasi-two-dimensional algorithm is a... View full abstract»

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  • Lossy synthesis of digital lattice filters

    Publication Year: 1998, Page(s):512 - 518
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (228 KB)

    A new method fur converting a lossless cascade lattice realization of a real, stable, single-input, single-output (ARMAn, n) filter, with a lossy constant terminating one-port section, to a lossy realization is proposed. The conversion process is carried out through the factorization of the transfer scattering matrix of a two-port equivalent of the terminating section and the distribution of the l... View full abstract»

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  • Design of equiripple FIR filters using a feedback neural network

    Publication Year: 1998, Page(s):527 - 531
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (164 KB)

    The weighted least squares design of FIR filters is implemented in terms of a feedback neural network. The proposed neural network is shown to converge to the global minimum in each iteration for the current weighting function, and as the weighting function is adjusted from iteration to iteration, an equiripple design is achieved. The approach is applicable to FIR filters with piecewise-constant a... View full abstract»

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  • Design of data format converters using two-dimensional register allocation

    Publication Year: 1998, Page(s):504 - 508
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (144 KB)

    In many DSP applications, data format converters (DFC's) are used to permute the data transferred between processing modules. In VLSI implementations, these converters consume a large amount of the given resources, especially area. Previous methods on the synthesis of data format converters have focused on optimizing the number of registers. Also, two-dimensional register allocation schemes have b... View full abstract»

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  • Clock-controlled neuron-MOS logic gates

    Publication Year: 1998, Page(s):518 - 522
    Cited by:  Papers (24)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (124 KB)

    A new clock-controlled circuit scheme has been introduced in the basic architecture of neuron-MOS (neuMOS or νMOS) logic gates. In this scheme, the charge on a neuMOS floating gate is periodically refreshed by a clock-controlled switch. A special refreshing scheme in which fluctuations in device parameters are automatically canceled has been employed. As a result, the number of multiple logic l... View full abstract»

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  • An efficient frequency-domain algorithm for discrete orthogonal basis restoration

    Publication Year: 1998, Page(s):522 - 525
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (112 KB)

    Discrete orthogonal basis restoration (DOBR) is a robust method for the inverse solution of linear systems of the type [A][o]=(i), where [A] may be either shift variant or invariant. Presented in this work is the derivation of a frequency-domain DOBR algorithm that significantly improves computational efficiency. Substantial reductions in the number of arithmetic operations are possible when syste... 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