IEEE Transactions on Acoustics, Speech, and Signal Processing

Issue 4 • August 1983

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Displaying Results 1 - 25 of 42
  • [Front cover and table of contents]

    Publication Year: 1983, Page(s): 0
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    Freely Available from IEEE
  • Comments on "Hardware for two-dimensional digital filtering using Fermat number transforms

    Publication Year: 1983, Page(s):1034 - 1037
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (371 KB)

    In the above-mentioned paper it was shown how two-dimensional convolutions of arrays of size μn by μn could be calculated by means of number theoretic transforms of length n by n. Some improvements can be made in this algorithm in the sense that the number of general multiplications can be reduced. Systematic techniques to accomplish this reduction are presented in this comment. View full abstract»

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  • Calculation of the impulse response of two-dimensional digital filter

    Publication Year: 1983, Page(s):1050 - 1052
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (333 KB)

    A method for the calculation of the impulse response of quarter-plane and half-plane filters will be presented. The basic result is that the functions Hl(Z) defined byH(z, w) = summin{l=-infin}max{+infin} H_{l}(z)w^{-1}obey a simple difference equation. The necessary initial conditions can be obtained by restrictions on the support of the impulse response. The proposed method... View full abstract»

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  • [Back cover]

    Publication Year: 1983, Page(s): c4
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    Freely Available from IEEE
  • A segmentation algorithm for connected word recognition based on estimation principles

    Publication Year: 1983, Page(s):818 - 827
    Cited by:  Papers (5)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1208 KB)

    Recognition of connected words can be performed by segmenting the word string automatically into single-word components which are then classified by a single-word recognition system. We propose and investigate a speaker-independent segmentation procedure which is based completely on statistical principles. An estimation algorithm, adapted to the statistical data of the signal parameters, determine... View full abstract»

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  • 8086/8088 16-bit microprocessor primer

    Publication Year: 1983, Page(s): 1053
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB)

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  • The forrest mims circuit scrapbook

    Publication Year: 1983, Page(s): 1053
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (152 KB)

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  • Passive source localization from spatially correlated angle-of-arrival data

    Publication Year: 1983, Page(s):842 - 846
    Cited by:  Papers (10)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (456 KB)

    Bias and variance equations are presented for two-dimensional location estimators of a nonmoving point source of radiation in an isotropic, stationary random medium. The estimators are calculated from spatially correlated angle-of-arrival data which are collected simultaneously at two sensor positions, and assumed to consist of true (unbiased) source angles plus zero-mean angular noise with equal ... View full abstract»

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  • Two-dimensional IIR filter design with magnitude and phase error criteria

    Publication Year: 1983, Page(s):886 - 894
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1232 KB)

    Two-dimensional IIR filters are designed using an error criterion consisting of the weighted sum of magnitude, phase, and stability errors, thereby extending the spectral factorization-based method to complex approximation. The weights are adjusted to effectively constrain stability while minimizing a weighted sum of frequency domain magnitude and phase errors. We use a derivative-free variant of ... View full abstract»

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  • Microprocessor systems and their application to signal processing

    Publication Year: 1983, Page(s): 1052
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (160 KB)

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  • Noise sensitivity of band-limited signal derivative interpolation

    Publication Year: 1983, Page(s):1028 - 1032
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (472 KB)

    The sensitivity of interpolation of the pth derivative of a band-limited signal directly from the signal's samples in the presence of additive stationary noise is considered. Oversampling and filtering generally decrease the interpolation noise level when the data noise is not band-limited. A lower bound on the interpolation noise level can be approached arbitrarily closely by increasing the sampl... View full abstract»

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  • On two-dimensional Markov spectral estimation

    Publication Year: 1983, Page(s):836 - 841
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (776 KB)

    We give systematic methods for two-dimensional (2-D) spectral estimation from raw data using Gaussian Markov random field (MRF) models. The MRF models considered in this paper characterize the statistical dependence of the observation y(s) on its neighbors in all directions. Due to the modeling assumption, the 2-D spectrum is an explicit function of the parameters of the MRF model. Thus, the spect... View full abstract»

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  • Time-dependent ARMA modeling of nonstationary signals

    Publication Year: 1983, Page(s):899 - 911
    Cited by:  Papers (266)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1888 KB)

    Modeling of nonstationary signals can be achieved through time-dependent autoregressive moving-average models and lattices, by the use of a limited series expansion of the time-varying coefficients in the models. This method leads to an extension of several well-known techniques of stationary spectral estimation to the nonstationary case. Time-varying AR models are identified by means of a fast (L... View full abstract»

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  • Optimal design of minimum-phase FIR filters

    Publication Year: 1983, Page(s):922 - 926
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (576 KB)

    The paper presents a new method for the optimal design of minimum phase FIR filters. First, a constrained approximation procedure is used to obtain the magnitude function and the transmission zeros in the stopband(s). Next, the zeros of the transfer function inside the unit circle are calculated via a low-degree polynomial factorization. For low-pass filters, a straightforward exchange algorithm i... View full abstract»

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  • On efficient implementations of 2-D digital filters using logarithmic number systems

    Publication Year: 1983, Page(s):877 - 885
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (904 KB)

    The implementation of 2-D digital filters using logarithmic number systems (LNS's) is discussed in detail. The properties of such systems are derived with reference to an iterative rounding scheme, which allows increasing the accuracy of the filter coefficient representation by using more than one power of the base a. The optimization of the base is proposed as an efficient tool for the design of ... View full abstract»

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  • An algorithm for the numerical evaluation of the Hankel and Abel transforms

    Publication Year: 1983, Page(s):979 - 985
    Cited by:  Papers (22)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (448 KB)

    A procedure for the efficient numerical evaluation of the Hankel and Abel transforms is proposed. The Abel transform is reduced to a convolution which is evaluated in part analytically and in part with an FFT. The Hankel transform is obtained by following the Abel transform with an FFT. View full abstract»

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  • Effect of gradient noise on the adaptive cancellation of a sinusoid in white noise

    Publication Year: 1983, Page(s):1043 - 1045
    Cited by:  Papers (2)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (360 KB)

    It is demonstrated that for applications in which adaptive cancellation of sinusoids, rather than enhancement, is desired, the effect of gradient noise is negligible when operating within the stability range of the filter. View full abstract»

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  • Arrays of synthetic acoustic well logging waveforms: Computation and source design

    Publication Year: 1983, Page(s):946 - 955
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1176 KB)

    Arrays of synthetic acoustic well logging waveforms are useful in the initial development of signal processing methods, as an aid in understanding actual well logging data, and in an analysis-by-synthesis approach to data inversion. In this paper, we present a fast and accurate method for the numerical evaluation of arrays of synthetic acoustic well logging waveforms associated with a homogeneous ... View full abstract»

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  • Relative linear power contribution with estimation statistics

    Publication Year: 1983, Page(s):1025 - 1028
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    The relative contribution by a noiselessly observed input signal to the power of a possibly disturbed observed stationary output signal from a linear system is expressed into signal spectral densities. Approximations of estimator statistics and derived confidence limits agree fairly well with simulation results for white signals. View full abstract»

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  • Linear predictive coding of marine seismic data

    Publication Year: 1983, Page(s):828 - 835
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (848 KB)

    This paper examines the utility of linear predictive coding in reducing the amount of data storage required for signals gathered in ocean bottom seismology. In this study, a set of 12 typical signals were repeatedly encoded with the storage allocated decreasing from an initial 12 bits per datum to 2. The error introduced was then compared to the performance achieved by simply rounding off the lowe... View full abstract»

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  • K-cyclic symmetries in multidimensional sampled signals

    Publication Year: 1983, Page(s):847 - 860
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1320 KB)

    In this paper, K-cyclic frequency domain symmetry conditions for N-dimensional sampled signals are introduced. It is shown that these frequency domain symmetry conditions result in certain interrelationships between the sample values. A theorem is given that specifies these interrelationships. Several interesting properties of K-cyclic symmetries are discussed. Also, a systematic approach is given... View full abstract»

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  • A new design method of optimal finite wordlength linear phase FIR digital filters

    Publication Year: 1983, Page(s):1032 - 1034
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (392 KB)

    The branch and bound technique is applied to the design of optimal finite wordlength linear phase FIR digital filters in a new efficient way. Compared to other reported methods there is a great saving of storage area used by the designing program; reductions in computation time are also to be expected. View full abstract»

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  • Effects of additive noise on signal reconstruction from Fourier transform phase

    Publication Year: 1983, Page(s):894 - 898
    Cited by:  Papers (16)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (592 KB)

    The effects of additive noise in the given phase on signal reconstruction from the Fourier transform phase are experimentally studied. Specifically, the effects on the sequence reconstruction of different methods of sampling the degraded phase of the number of nonzero points in the sequence, and of the noise level, are examined. A sampling method that significantly reduces the error in the reconst... View full abstract»

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  • A 32 bit programmable signal processor for a multiprocessor system environment

    Publication Year: 1983, Page(s):912 - 921
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    The architecture, system design, and program operation are presented for a 32 bit programmable signal processor that can operate in a single or multiprocessor system environment. The processor design features include moderately high throughput, versatile input-output structure via a vector interrupt assisted programmed I/O or distributed DMA, relative ease of programming, and a low absolute parts ... View full abstract»

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  • Efficient special purpose linear programming for FIR filter design

    Publication Year: 1983, Page(s):963 - 968
    Cited by:  Papers (21)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    A high efficiency special purpose linear programming algorithm for FIR filter design is introduced, This algorithm incorporates FFT and FIR zero-phase filters to assist in the computation. Compared to the general purpose linear programming, this special purpose linear programming produces large savings in the computing cost when used to design FIR filters. The savings increase with the length of t... View full abstract»

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Aims & Scope

This Transactions ceased production in 1990. The current retitled publication is IEEE Transactions on Signal Processing.

Full Aims & Scope