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

Issue 6 • Date Jun 1994

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Displaying Results 1 - 12 of 12
  • Properties and ways of calculation of multi-polarity generalized Walsh transforms

    Publication Year: 1994 , Page(s): 380 - 391
    Cited by:  Papers (11)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (1000 KB)  

    A new formulation of the multi-polarity generalized Walsh transform has been introduced. The formulation allows a uniform representation of Boolean functions by a set of orthogonal and generalized Walsh spectral coefficients. Forward and inverse transformation kernels and the method of recursive generation of transform matrices by using Kronecker products of elementary matrices have been given. Mu... View full abstract»

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  • Wide-area adaptive active noise cancellation

    Publication Year: 1994 , Page(s): 405 - 409
    Cited by:  Papers (3)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (420 KB)  

    This paper describes an adaptive active noise cancellation (ANC) system that is based on an output-whitening approach and is an extension of the work of Graupe and Efron on single point adaptive ANC. The controller works by continually estimating the time-series parameters of the noise to be cancelled and by forcing the cancellation network to follow the identified parameters, so that the output i... View full abstract»

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  • Symbolic dynamics of piecewise-linear maps

    Publication Year: 1994 , Page(s): 420 - 424
    Cited by:  Papers (12)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (412 KB)  

    In this paper we develop the theory of symbolic dynamics on piecewise-linear maps. We prove several results concerning periodic points and admissible periodic sequences and show how this theory is used on maps which are composed of signum functions by means of two examples in signal processing, namely digital filters with overflow nonlinearity and sigma-delta modulators. For example, we show that ... View full abstract»

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  • Design and characterization of a standard cell set for delay insensitive VLSI design

    Publication Year: 1994 , Page(s): 410 - 415
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (556 KB)  

    A working synthesis system for delay insensitive (DI) VLSI design is used as a case study to investigate the correspondence between theoretical formalization and electric circuit operation. Most of the previous research has treated DI VLSI design from a formal point of view. We illustrate the new features involved in the electrical design and characterization of DI cells, reporting circuit schemat... View full abstract»

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  • Analysis of adaptive FIR filters in cascade form

    Publication Year: 1994 , Page(s): 392 - 401
    Cited by:  Papers (5)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (752 KB)  

    This paper deals with the behavior of adaptive FIR filters in cascade form. The cascade filters are investigated with simulations and analysis. The results and methods for the cascade filters are compared with the corresponding cases for the transversal filter and, especially, the well-known LMS algorithm. In the analysis, we treat a cascade filter updated with a gradient algorithm. The analysis, ... View full abstract»

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  • A new nonparametric method for linear system phase recovery from bispectrum

    Publication Year: 1994 , Page(s): 415 - 419
    Cited by:  Papers (2)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (380 KB)  

    For input signals with nonzero third order moment, the phase of a linear system transfer function can be identified from the bispectrum of its output signal. Instead of using partial bispectrum phase information which is more sensitive to noises and measurement errors, a new nonparametric method is proposed to utilize all the available bispectrum phase information. The proposed new method is compu... View full abstract»

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  • Application of multitransforms for lossy image representation

    Publication Year: 1994 , Page(s): 431 - 434
    Cited by:  Papers (15)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (416 KB)  

    The multitransform technique is applied for lossy image representation. The image is first divided into smaller non-overlapping subimages. Each subimage is resolved into two dimensional (2-D) subsignals, which are then compactly represented in a particular transform domain. This leads to an efficient representation of the subimage by superimposing the dominant coefficients corresponding to each su... View full abstract»

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  • Calculation of minimum number of registers in arbitrary life time chart

    Publication Year: 1994 , Page(s): 434 - 436
    Cited by:  Papers (9)  |  Patents (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (248 KB)  

    This paper presents a general approach to calculate the minimum number of registers in any digital signal processing (DSP) circuit for any arbitrarily specified life time chart and periodicity of computation. DSP operations are repetitive and periodic in nature. The life time chart specifies the life period of all variables in a single frame and the subsequent frames are computed in a periodic man... View full abstract»

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  • A preprocessing architecture for resolution enhancement in high-speed analog-to-digital converters

    Publication Year: 1994 , Page(s): 373 - 379
    Cited by:  Papers (17)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (564 KB)  

    High performance analog-to-digital converters (ADC's) employ a parallel configuration of analog folding circuits to symmetrically fold the input signal prior to quantization by high speed comparators (analog preprocessing). This paper identifies a new preprocessing approach that can be easily incorporated into the established techniques to provide an enhanced resolution capability with fewer numbe... View full abstract»

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  • Design of bounded-degree circuits for parallel processing

    Publication Year: 1994 , Page(s): 428 - 431
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (332 KB)  

    The design of large circuits to interconnect many processors with low number of I/O ports and short diameter has been one of the major goals of researchers. Unfortunately, the underlying topologies of most of the popular circuits have a degree of the node which is a function of the network size. From the implementation viewpoint, networks with unbounded degree of the node pose two problems. First,... View full abstract»

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  • Bounds for floating-point roundoff noise

    Publication Year: 1994 , Page(s): 424 - 426
    Cited by:  Papers (1)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (244 KB)  

    The dummy multiplier model and the conventional estimates for roundoff noise variance in floating-point implementations are compared. Common upper and lower bounds for the noise estimates are derived and experimental results are presented. Although the two noise estimates have common finite bounds, it is shown that they may differ by more than 10 dB for narrowband lowpass filters View full abstract»

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  • Multistage bandpass delta sigma modulators

    Publication Year: 1994 , Page(s): 402 - 405
    Cited by:  Papers (8)  |  Patents (4)
    Save to Project icon | Request Permissions | Click to expandAbstract | PDF file iconPDF (304 KB)  

    A new architecture for oversampled delta sigma A/D conversion of high-frequency narrow band signals using cascaded low-order stages to obtain high overall order of noise shaping is described. The architecture involves using resonators in individual stages to suppress quantization noise at the resonant frequency. Many of the problems of previous single stage high-order architectures including poor ... 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