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Acoustics, Speech and Signal Processing, IEEE Transactions on

Issue 1 • Date February 1983

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Displaying Results 1 - 25 of 54
  • [Front cover and table of contents]

    Publication Year: 1983, Page(s): 0
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    Freely Available from IEEE
  • Comments on "Selection criteria for efficient implementation of FFT algorithms

    Publication Year: 1983, Page(s): 206
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (133 KB)

    First Page of the Article
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  • Foreword

    Publication Year: 1983, Page(s):250 - 251
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    Freely Available from IEEE
  • [Back cover]

    Publication Year: 1983, Page(s): c4
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    Freely Available from IEEE
  • On the zeros of the linear prediction-error filter for deterministic signals

    Publication Year: 1983, Page(s):217 - 220
    Cited by:  Papers (60)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (512 KB)

    The zeros of a linear prediction-error filter polynomial for a class of deterministic signals, that are a sum of samples of M exponentially damped/undamped sinusoids, is studied. It is assumed that N samples are available for processing and that they are uncorrupted by noise. It is shown that the exponent parameters of the M signals can be determined from M zeros (called "signal zeros") of an Lth ... View full abstract»

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  • A family of special purpose microprogrammable digital signal processor IC's in an LPC vocoder system

    Publication Year: 1983, Page(s):273 - 281
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1368 KB)

    This paper discusses a family of digital signal processor integrated circuits designed to be the fundamental building blocks of an LPC vocoder, specifically LPC analysis, AMDF pitch extraction, and LPC synthesis. The IC's are custom designs intended to minimize silicon real estate for extremely high performance, novel DSP architectures, and high computational demand algorithms. Each IC shares a co... View full abstract»

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  • On the approximation of FIR by IIR digital filters

    Publication Year: 1983, Page(s):28 - 34
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    Kaiser's empirical formula for finite impulse response (FIR) digital filter length, as a function of transition width and rejection band loss (together with the I_{0}-\sinh window function), provides a simple FIR filter design algorithm. Recent developments in time series analysis provide a theoretical procedure for selecting the numerator and denominator or... View full abstract»

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  • Recursive discrete Fourier transformation with unevenly spaced data

    Publication Year: 1983, Page(s):206 - 209
    Cited by:  Papers (6)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    New recursive techniques for Fourier spectral analysis are reported, for which ongoing spectral estimates are generated from unevenly spaced data in real time. The algorithms are robust and computationally efficient, and are well suited to state variable form involving real number calculations. These methods are particularly attractive in filtering and signal processing applications where signals ... View full abstract»

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  • QNAR AGC systems for adaptive signal detection

    Publication Year: 1983, Page(s):225 - 228
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (432 KB)

    In a previous paper we presented an NAR AGC system for regulation of noise power in presence of nonoverlapped signals and we showed its limitation in the case of overlapped signals. In this paper we consider the later case for which it is necessary to secure the NAR property all the time otherwise the receiver output will be attenuated. We show that it is possible to satisfy this condition only in... View full abstract»

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  • Recursive least squares circular lattice and escalator estimation algorithms

    Publication Year: 1983, Page(s):228 - 231
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (352 KB)

    This note supplements the paper of Sakai [1] about circular lattice filtering with the derivation of optimal recursive least squares circular lattice estimation algorithms. The derivation is based on the geometric method of Lee, Morf, and Friedlander [2]. The same method is also applied to obtain an optimal recursive estimation algorithm for escalator structure of Ahmed and Youn [3]. View full abstract»

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  • The complex LMS adaptive algorithm--Transient weight mean and covariance with applications to the ALE

    Publication Year: 1983, Page(s):34 - 44
    Cited by:  Papers (53)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1064 KB)

    The transient and steady-state mean and covariance of the complex-valued LMS adaptive element weights are investigated when the inputs are samples from circularly normal processes. It is shown that the data covariance diagonalizing matrix also diagonalizes the weight covariance matrix. This result permits describing the complete transient behavior of the adaptive line enhancer (ALE) weight covaria... View full abstract»

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  • A monolithic data acquisition channel

    Publication Year: 1983, Page(s):305 - 313
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1400 KB)

    A monolithic data acquisition channel has been fabricated using a double level polysilicon NMOS process. The channel consists of a switched-capacitor filter, a continuous-time active RC filter, and a successive approximation analog-to-digital converter. The IC is in the form of a parts kit for a data acquisition channel so that each functional component can be characterized independently. Stitch b... View full abstract»

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  • The processing of periodically sampled multidimensional signals

    Publication Year: 1983, Page(s):188 - 194
    Cited by:  Papers (47)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (704 KB)

    This paper discusses algorithms for processing multidimensional signals which are sampled on regular, but nonrectangular sampiing lattices. Such sampling lattices are dictated by some applications and may be chosen for others because of their resulting symmetric responses or computational efficiencies. We show that any operation which can be performed on a rectangular lattice can be performed on a... View full abstract»

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  • A monolithic audio spectrum analyzer

    Publication Year: 1983, Page(s):288 - 293
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (736 KB)

    A monolithic audio spectrum analyzer with 16 channels of bandpass filters, half-wave rectifiers, and postfiltering has been fabricated with double-poly NMOS technology. The chip was designed using switched-capacitor filter techniques. It performs a total of 84 poles of filtering and contains 100 operational amplifiers in an area of 225 × 280 mils. A system dynamic range of better than 43 dB, ... View full abstract»

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  • An auditory spectral analysis model using the chirp z-transform

    Publication Year: 1983, Page(s):148 - 156
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (856 KB)

    In this paper we discuss a new signal-processing approach to implementing an auditory processing model. The model is based on auditory physiology and psychophysics; it uses constant-bandwidth analysis below 500 Hz and constant-Q analysis above 500 Hz, with the analysis filters being implemented with multiple real poles. The constant-Q analysis is performed using the chirp z-transform (CZT). We rev... View full abstract»

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  • A single-chip ADM LSI CODEC

    Publication Year: 1983, Page(s):281 - 287
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    This paper describes the circuit design of an ADM (adaptive delta modulation) LSI CODEC with filters. The LSI chip is mounted in a 16-pin DIP and can operate with single low voltage supply. In order to realize a low power dissipation LSI IC, switched capacitor technology was used in the design of input/output filters and integrators, and C-array D/A converters and low voltage analog circuits were ... View full abstract»

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  • Conversion factors from Walsh coefficients to Fourier coefficients

    Publication Year: 1983, Page(s):231 - 232
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (216 KB)

    We have proposed a computational algorithm for the discrete Fourier transform (DFT) via the discrete Walsh transform (DWT). However, the calculation equations for the conversion factors from the DWT coefficients to the DFT coefficients have not been shown. This paper presents the equations for the conversion factors. View full abstract»

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  • Adaptive enhancement of finite bandwidth signals in white Gaussian noise

    Publication Year: 1983, Page(s):17 - 28
    Cited by:  Papers (23)  |  Patents (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1312 KB)

    The steady-state behavior of the adaptive line enhancer (ALE) is analyzed for stationary inputs consisting of finite bandwidth signals embedded in a white Gaussian noise (WGN) background. Analytic expressions for the weights and output of the LMS adaptive filter are derived as functions of input signal bandwidth and SNR, as well as ALE length and bulk delay. The steady-state gain in broad-band SNR... View full abstract»

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  • Improvements in isolated word recognition

    Publication Year: 1983, Page(s):157 - 167
    Cited by:  Papers (7)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1192 KB)

    For isolated word recognition, possibilities for improving the recognition accuracy are investigated for a given feature extraction, which is based on a short term spectrum analysis by means of band-pass filtering. A number of preprocessing steps are discussed, which are to be applied prior to time alignment via dynamic programming. These preprocessing steps include normalization of short term spe... View full abstract»

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  • The real-time signal processor

    Publication Year: 1983, Page(s):83 - 95
    Cited by:  Papers (5)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1280 KB)

    The real-time signal processor (RSP) has a programmable signal processing architecture that was created to provide a quick and cost-effective way to implement a broad range of signal processing applications. Other objectives were that the RSP be easy to program, suitable for LSI implementation, and conveniently connectable into distributed systems. It was also intended that the RSP would be able t... View full abstract»

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  • Thinning digital filters: A piecewise-exponential approximation approach

    Publication Year: 1983, Page(s):105 - 113
    Cited by:  Papers (33)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    An algorithm is presented for designing finite impulse response (FIR) recursive digital filters that require few multiplies to produce good frequency response, The process of reducing the number of multiplies needed to implement a digital filter is called thinning. This thinning algorithm uses dynamic programming techniques to find the best least-squares piecewise-exponential approximation to a de... View full abstract»

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  • Modeling of multichannel time series and extrapolation of matrix-valued autocorrelation sequences

    Publication Year: 1983, Page(s):45 - 55
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1000 KB)

    This paper deals with multichannel time series, and extends the autocorrelation method for fitting the time series from the nondegenerate case to the general case. We shall show that the AR model obtained by solving the normal equations is always stable even in the degenerate case. The multichannel Levinson algorithm for solving the normal equations is extended from the nondegenerate case to the g... View full abstract»

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  • Causal invertibility and stability of asymmetric half-plane digital filters

    Publication Year: 1983, Page(s):195 - 201
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (832 KB)

    In this paper the following question is studied: suppose R \in l_{1}(Z^{2}) , and let Shdenote the semigroup generated by the support of h; when does h have an inverse in l1(Sh)? From an engineering viewpoint the question can be asked as follows: When does a causal stable filter have a causal stable inverse? In this paper we ... View full abstract»

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  • An extended precision logarithmic number system

    Publication Year: 1983, Page(s):232 - 234
    Cited by:  Papers (27)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (280 KB)

    The logarithmic number system possesses a comparatively wide dynamic range. In order to perform addition to this system, memory table lookup operations are needed. The address space limitations of contemporary high-speed static RAM's or ROM currently limit the admissible logarithmic wordlength. To overcome this problem, a linear interpolation logarithmic arithmetic unit is developed and tested. View full abstract»

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  • Number theoretic transforms with independent length and moduli

    Publication Year: 1983, Page(s):215 - 217
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (408 KB)

    Number theoretic transforms introduced by Rader [1], and Agarwal and Burrus [2] have gained increased recognition. These transforms are used to perform convolutions and have the advantage of exact calculations. All operations are performed in a finite ring with the arithmetic carried out modulo an integer P. The disadvantage is this structure causes a rigid relationship between the transform lengt... 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