IEEE Transactions on Acoustics, Speech, and Signal Processing

Volume 31 Issue 4 • August 1983

Filter Results

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

    Publication Year: 1983, Page(s): 0
    Request permission for commercial reuse | PDF file iconPDF (236 KB)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • [Back cover]

    Publication Year: 1983, Page(s): c4
    Request permission for commercial reuse | PDF file iconPDF (866 KB)
    Freely Available from IEEE
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Efficient special purpose linear programming for FIR filter design

    Publication Year: 1983, Page(s):963 - 968
    Cited by:  Papers (22)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the effects of varying filter bank parameters on isolated word recognition

    Publication Year: 1983, Page(s):793 - 807
    Cited by:  Papers (66)  |  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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Adaptive beam forming using a cascade configuration

    Publication Year: 1983, Page(s):940 - 945
    Cited by:  Papers (19)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (616 KB)

    A new technique for adaptive beam forming based on the Davies cascade array configuration [11] is presented. First of all it is shown that an n-element linear array can be reconfigured as a number of subarrays of two elements each. This two-element array is capable of steering one null in an arbitrary direction while maintaining a desired gain in some other prespecified look direction. To adaptive... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • A new design method of optimal finite wordlength linear phase FIR digital filters

    Publication Year: 1983, Page(s):1032 - 1034
    Cited by:  Papers (7)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Number theoretic transforms for the calculation of convolutions

    Publication Year: 1983, Page(s):969 - 978
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (960 KB)

    In this paper, we present new algorithms for the calculation of convolutions by means of number theoretic transforms over modulo rings. Not only are these algorithms more efficient than currently used methods, but they are also very flexible. Indeed, using special algorithms for short convolutions allows trading computational efficiency for structural simplicity. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Frequency errors of the energy-weighted algorithm in processing sinusoidal signals: The analytic formula

    Publication Year: 1983, Page(s):1045 - 1048
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (384 KB)

    An analytic formula for the frequency errors in processing real noiseless sinusoidal data with energy-weighted spectral estimation technique is derived and compared to Burg's technique analytic expression. The significance of the analytic formula in processing sinusoidal signals in a high signal-to-noise ratio environment is also discussed. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Noise sensitivity of band-limited signal derivative interpolation

    Publication Year: 1983, Page(s):1028 - 1032
    Cited by:  Papers (10)
    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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • 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»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Time-dependent ARMA modeling of nonstationary signals

    Publication Year: 1983, Page(s):899 - 911
    Cited by:  Papers (276)  |  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»

    Full text access may be available. Click article title to sign in or learn about subscription options.

Aims & Scope

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

Full Aims & Scope