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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
  • Steady-state response of a delay-constrained adaptive linear predictor filter to a sinusoid in white noise

    Publication Year: 1983, Page(s):1039 - 1043
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (528 KB)

    An analysis is presented for the steady-state response of a delay-constrained adaptive linear predictor filter to a sinusoid in white noise. Expressions are derived for the steady-state adaptive weights, frequency response, and line suppression. A useful bound is also derived for the worst-case output signal-to-noise ratio as a function of normalized frequency and the order of the filter. View full abstract»

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  • Noise spectra of digital sine-generators using the table-lookup method

    Publication Year: 1983, Page(s):1037 - 1039
    Cited by:  Papers (19)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (328 KB)

    The table-lookup method is a convenient and very flexible way to generate high-quality sinusoidal test signals for measurements in psychoacoustics, speech perception, etc. Exact spectra of such signals, which are of great interest in experiments, are derived, and the relation between spectral shape, table length, and sine frequency is shown. 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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  • Comparison of three correlation coefficient estimators for gaussian stationary processes

    Publication Year: 1983, Page(s):1023 - 1025
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (312 KB)

    Using independent samples from two stationary Gaussian processes, second-order statistics are examined for the following three correlation estimators: 1) the direct estimator, 2) a "hybrid-sign" estimator, and 3) the polarity coincidence estimator. In most cases, increasing the number of samples by a factor of two or three allows one to use the simple polarity coincidence estimator with the same a... 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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  • Completely-pipelined architectures for digital signal processing

    Publication Year: 1983, Page(s):1016 - 1023
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    A class of completely-pipelined VLSI architectures is defined. Two topologies are then described: leaf-connected trees and mesh-connected trees. The leaf-connected tree structure is used to construct a completely-pipelined bit-serial multiplier and a completely-pipelined word-serial, bit-serial convolver. The mesh-connected tree structure is used to implement completely-pipelined bit-parallel mult... 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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  • On the effects of varying filter bank parameters on isolated word recognition

    Publication Year: 1983, Page(s):793 - 807
    Cited by:  Papers (64)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1600 KB)

    The vast majority of commercially available isolated word recognizers use a filter bank analysis as the front end processing for recognition. It is not well understood how the parameters of different filter banks (e.g., number of filters, types of filters, filter spacing, etc.) affect recognizer performance. In this paper we present results of performance evaluation of several types of filter bank... View full abstract»

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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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  • 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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  • The forrest mims circuit scrapbook

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

    First Page of the Article
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  • On temporal alignment of sentences of natural and synthetic speech

    Publication Year: 1983, Page(s):807 - 813
    Cited by:  Papers (17)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    One way to improve the quality of synthetic speech, and to learn about temporal aspects of speech recognition, is to study the problem of time aligning pairs of spoken sentences. For example, one could evaluate various sets of duration rules for synthesis by comparing the time alignments of speech sounds within synthetic sentences to those of naturally spoken sentences. In this manner, an improved... View full abstract»

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  • Optimum array filters for array data signal processing

    Publication Year: 1983, Page(s):1006 - 1015
    Cited by:  Papers (30)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1072 KB)

    This paper deals with the design of filters for processing data obtained from arrays of sensors used for signal measurements in a variety of applications. The objective of the filters is to optimally suppress undesired signals intercepting the array, while at the same time to preserve the desired signal that the array is attempting to measure. A constrained minimization problem is formulated for d... 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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  • Signal reconstruction from short-time Fourier transform magnitude

    Publication Year: 1983, Page(s):986 - 998
    Cited by:  Papers (73)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1504 KB)

    In this paper, a signal is shown to be uniquely represented by the magnitude of its short-time Fourier transform (STFT) under mild restrictions on the signal and the analysis window of the STFT. Furthermore, various algorithms are developed which reconstruct signal from appropriate samples of the STFT magnitude. Several of the algorithms can also be used to obtain signal estimates from the process... View full abstract»

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  • An improved FPT algorithm for computing two-dimensional cyclic convolutions

    Publication Year: 1983, Page(s):1048 - 1050
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    In this correspondence the fast polynomial transform (FPT) algorithm for two-dimensional cyclic convolutions in [6], [7] is improved. These improvements result from reduction of the complexity of polynomial products, modulo (zK+ 1), and the decomposition and reconstruction by the Chinese remainder theorem. With these improvements the FPT can be performed with a more regular and modular ... View full abstract»

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  • Ξ-filters

    Publication Year: 1983, Page(s):861 - 876
    Cited by:  Papers (20)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3976 KB)

    A new family of nonlinear digital convolution filters is described having unusual and valuable properties. The response is constant phase over the entire input frequency range and, in some forms, no signal whatsoever is passed beyond the cutoff frequency and side-lobes are identically zero. By simply iterating the transform upon which a Ξ-filter is based without changing the size of the convo... 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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  • Adaptation convergence of spectral estimation based on Pisarenko harmonic retrieval

    Publication Year: 1983, Page(s):955 - 962
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (896 KB)

    Proposed by Thompson in [1] was a technique for adaptive spectral estimation, particularly suited for tracking narrow-band signals in broad-band noise. This technique represented a data-adaptive variation of the block-oriented Pisarenko analysis technique. The algorithm departs from similar adaptive approaches based on linear prediction in that its estimate of line frequency is unbiased with the l... 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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  • 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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Aims & Scope

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

Full Aims & Scope