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

Issue 8 • Date Aug 1994

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Displaying Results 1 - 7 of 7
  • Fast parallel realization of IIR adaptive filters

    Publication Year: 1994, Page(s):561 - 567
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (480 KB)

    A parallel realization based on the voltage-conversion generalized-immittance converter is used for the implementation of adaptive IIR filters. Through this approach, the convergence rate of the parallel realization is substantially increased, and becomes comparable or higher than that in the direct-form realization and much higher than that in the lattice realization. The paper deals with the rea... View full abstract»

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  • Frequency-response masking approach for digital filter design: complexity reduction via masking filter factorization

    Publication Year: 1994, Page(s):518 - 525
    Cited by:  Papers (64)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (560 KB)

    It has been reported in several recent publications that the frequency response masking technique is eminently suitable for synthesizing filters with very narrow transition-width. The major advantages of the frequency response masking approach are that the resulting filter has a very sparse coefficient vector and that the resulting filter length is only slightly longer than that of the theoretical... View full abstract»

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  • Coefficient sensitivity analysis of periodically time-varying state-space digital filters

    Publication Year: 1994, Page(s):526 - 536
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    This paper considers an analysis of statistical coefficient sensitivity and frequency coefficient sensitivity of Periodically Time-Varying (PTV) state-space digital filters. A statistical coefficient sensitivity is defined by using a virtual PTV state-space digital filter in which the periodically time-varying coefficients are stochastically varying. In order to analyze frequency coefficient sensi... View full abstract»

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  • Fast algorithms for updating signal subspaces

    Publication Year: 1994, Page(s):537 - 549
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1076 KB)

    In various real-time signal processing and communication applications, it is often required to track a low-dimensional signal subspace that slowly varies with time. Conventional methods of updating the signal subspace rely on eigendecomposition or singular value decomposition, which is computationally expensive and difficult to implement in parallel. Recently, Xu and Kailath proposed fast and para... View full abstract»

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  • A Remez exchange algorithm for orthonormal wavelets

    Publication Year: 1994, Page(s):550 - 560
    Cited by:  Papers (74)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (868 KB)

    Compactly supported orthonormal wavelets are obtained from two-band paraunitary FIR filter bank solutions, with the additional “flatness” constraint that the low-pass filter should have K zeroes at half the sampling frequency. This constraint is set to obtain “regular” wavelets. However, it is somewhat in contradiction with the usual requirement for good frequency selectivi... View full abstract»

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  • Efficient narrowband FIR and IFIR filters based on powers-of-two sigma-delta coefficient truncation

    Publication Year: 1994, Page(s):497 - 505
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    A new quantization scheme is presented for truncating the values of a high precision digital sequence to only a few non-zero bits. Sigma-delta modulation is used to round values to the nearest n-bit canonic signed-digit code (number representable as sum or difference of at most n powers-of-two) such that the quantization error is moved to higher frequencies. This technique can be applied to the im... View full abstract»

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  • Multiscale signal processing: isotropic random fields on homogeneous trees

    Publication Year: 1994, Page(s):506 - 517
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (784 KB)

    In this paper we consider isotropic processes indexed by the nodes of a homogeneous tree of order q. An oriented (“hanging”) version of the qth order tree appears naturally when we consider successive filtering-and-decimation (by a factor of q) operations, as in multirate filtering and wavelet transforms. We derive Levinson and Schur recursions which provide us with a parametrization o... 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