IEEE Transactions on Information Theory

Volume 10 Issue 1 • January 1964

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Displaying Results 1 - 22 of 22
  • The extension to probability distributions for detection spatial filters

    Publication Year: 1964, Page(s):2 - 5
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (590 KB)

    The idea of extending partial descriptions to a probability density function on a minimum information (maximum entropy) basis is applied in the context of detection spatial filters, i.e., filters with two-dimensional input and output used for detection. Several two-dimensional moment descriptions are thus extended and worked out in detail. View full abstract»

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  • Coding for and decomposition of two-way channels

    Publication Year: 1964, Page(s):5 - 17
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1990 KB)

    A discrete memoryless two-way channel is defined by a set of transmission probabilities<tex>P(y, \bar{y}/x, \bar{x})</tex>, where<tex>x</tex>and are the transmitted signals, and<tex>y</tex>and<tex>\bar{y}</tex>are the received signals. Shannon showed that if<tex>x</tex>and<tex>\bar{x}</tex>are generated independently and witho... View full abstract»

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  • Time-frequency duality

    Publication Year: 1964, Page(s):18 - 33
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2572 KB)

    This paper develops a concept of duality, called time-frequency duality, which is applicable to a class of networks called communication-signal-processing networks. Such networks consist of an interconnection of basic elements such as filters, mixers, delay lines, etc. The usefulness of time-frequency duality stems from the fact that two situations which may be quite distinct physically can have i... View full abstract»

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  • Error analysis of a statistical decision method

    Publication Year: 1964, Page(s):34 - 38
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (499 KB)

    For the recognition of patterns as members of certain classes it is assumed that the probability distributions of certain characteristic features are known. For a decision based on the maximum likelihood criterion bounds on the statistical error are derived. In the case of normally distributed and statistically independent features these bounds are evaluated. Conditions are given under which the e... View full abstract»

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  • Transmitted-reference techniques for random or unknown channels

    Publication Year: 1964, Page(s):39 - 42
    Cited by:  Papers (75)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (541 KB)

    In this paper, a particular approach to the problem of communicating in certain random or unknown channels is considered. A particular set of signals is chosen, each member of which is partitioned into a known reference or sounding signal and a message signal. The channel is assumed to be linear, and is divided into a multiplicative and an additive portion. The multiplicative portion is assumed to... View full abstract»

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  • Unified analysis of certain coherent and noncoherent binary communications systems

    Publication Year: 1964, Page(s):43 - 51
    Cited by:  Papers (105)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1335 KB)

    A general result is presented for the error-rate performance of common binary signaling-detection techniques for reception in additive Gaussian noise, including {\em all} possible conditions of nonorthogonality of signal, and correlations in the noise processes. These forms include frequency-shift keying with non-coherent detection, generalized to {\em all} noncoherent detection systems utilizing ... View full abstract»

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  • A note on power-law devices and their effect on signal-to-noise ratio

    Publication Year: 1964, Page(s):52 - 57
    Cited by:  Papers (7)  |  Patents (5)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (817 KB)

    The effect of power-law devices, used as either band-pass nonlinear amplifiers or envelope detectors, on the signal-to-noise ratio is determined for both limiting cases of very large and very small input signal-to-noise ratio. Expressions are derived for the degradation in signal-to-noise ratio in terms of the envelopes and phases of the signal and noise. The results are general, applying to Gauss... View full abstract»

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  • A note on Bayes detection of signals

    Publication Year: 1964, Page(s):57 - 60
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (679 KB)

    The general Bayes decision rule is derived, showing that the best decision rule is always the single decision with smallest expected cost. The likelihood function detector for multiple signal classes is extended to include over lapping signal classes which occur in adaptive detection and in detection of stochastic signals. Specification of a multiple-signal detector in terms of its error probabili... View full abstract»

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  • The design of FM pulse compression signals

    Publication Year: 1964, Page(s):61 - 67
    Cited by:  Papers (48)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1010 KB)

    This paper gives a procedure for designing an FM signal of arbitrary envelope shape so that it will have a specified spectral modulus and hence, a specified autocorrelation function. The design procedure, which is based upon an approximate analysis, gives best results when the duration-bandwidth product of the signal is large, and it is therefore useful in the design of pulse compression signals. ... View full abstract»

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  • The autocorrelation function of the output of a nonlinear angle modulator

    Publication Year: 1964, Page(s):67 - 72
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (831 KB)

    The calculation of the autocorrelation function of the output of a randomly frequency-modulated oscillator with a non-linear tuning characteristic is similar to the calculation of the characteristic function of a functional of the form<tex>\int_{I}h(t', \tau) V(y(t')) dt'</tex>. This functional has arisen in a number of other stochastic problems, and so the techniques which have been a... View full abstract»

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  • An estimate of the variation of a band-limited process

    Publication Year: 1964, Page(s):72 - 74
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (273 KB)

    Upper and lower bounds are established for the mean-square variation of a stationary process<tex>X(t)</tex>whose power spectrum is bounded by<tex>\omega_{c}</tex>, in terms of its average power<tex>P_{0}</tex>and the average power<tex>P_{1}</tex>of its derivative. It is shown that<tex>\left( \frac{2}{\pi} \right)^{2} P_{1} \tau^{2} \leq E \{|X(... View full abstract»

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  • On a class of cyclically permutable error-correcting codes

    Publication Year: 1964, Page(s):75 - 78
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (675 KB)

    Cyclically permutable codes have error-correcting properties which are invariant under arbitrary cyclic permutation of any of their code words. This paper summarizes the results of an empirical investigation of certain of these codes, which have parameters not covered by a previous paper of E. N. Gilbert.<tex>^{1}</tex>These codes are thought to be nearly optimal. Estimates of the obta... View full abstract»

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  • Coherent extraction of signals from turbulent noise

    Publication Year: 1964, Page(s):78 - 88
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1764 KB)

    This paper reports the results of some theoretical and experimental studies of the extraction of signals from convecting and decaying fluid dynamic turbulent noise employing an analog correlation receiver. In addition, it presents an extension of the theory of correlator analysis for finite observation times to the case of a linear time-varying delay. Detailed study of the mean and variance of the... View full abstract»

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  • Several classes of codes generated from orthogonal functions

    Publication Year: 1964, Page(s):88 - 91
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (420 KB)

    A method of designing codes from orthogonal functions utilizing the existing knowledge of discrete error-correcting binary codes is given. The method consists in constructing the transformation matrix,<tex>[a_{ij}]</tex>, that performs the linear transformation by taking the finite set of orthogonal functions into the set of continuous code words. Several classes of code words are foun... View full abstract»

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  • Correction to 'Reducing the Effect of Intersymbol Interference with Correlation receivers'

    Publication Year: 1964, Page(s): 91
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  • The incoherent sequential detection of a sine wave in white noise (Corresp.)

    Publication Year: 1964, Page(s):92 - 93
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  • A note on a certain theorem stated by Kullback (Corresp.)

    Publication Year: 1964, Page(s):93 - 94
    Cited by:  Papers (1)
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  • General error criteria (Corresp.)

    Publication Year: 1964, Page(s):94 - 95
    Cited by:  Papers (15)
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  • Instantaneous spectra and ambiguity functions (Corresp.)

    Publication Year: 1964, Page(s):95 - 97
    Cited by:  Papers (23)  |  Patents (1)
    Request permission for commercial reuse | PDF file iconPDF (428 KB)
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  • On a relationship in Davenport and Root (Corresp.)

    Publication Year: 1964, Page(s): 95
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  • On the comparison of communication channels (Corresp.)

    Publication Year: 1964, Page(s):97 - 98
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  • Review of Recent Developments in Information and Decision Processes

    Publication Year: 1964, Page(s): 104
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Aims & Scope

IEEE Transactions on Information Theory publishes papers concerned with the transmission, processing, and utilization of information.

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Meet Our Editors

Editor-in-Chief
Alexander Barg

Department of Electrical and Computer Engineering and the Institute for Systems Research, University of Maryland

email: abarg-ittrans@ece.umd.edu