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IEEE Transactions on Information Theory

Volume 10 Issue 2 • April 1964

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Displaying Results 1 - 17 of 17
  • Error-limiting coding using information-lossless sequential machines

    Publication Year: 1964, Page(s):108 - 115
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1391 KB)

    An information4ossless sequential machine is essentially a machine whose input sequence may be recovered from knowledge of its output sequence. A situation is considered in which such a machine is used as the encoder for a communication system. With a noiseless channel, the information losslessness enables the input to the encoder to be recovered by a decoder which is the inverse (possibly delayed... View full abstract»

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  • Maximum distanceq-nary codes

    Publication Year: 1964, Page(s):116 - 118
    Cited by:  Papers (116)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (404 KB)

    Aq-nary error-correcting code withN = q^{k}code words of lengthn = k + rcan have no greater minimum distancedthanr+1. The class of codes for whichd = r+1is studied first in general, then with the restriction that the codes be linear. Examples and construction methods are given to show that these codes exist for a number of values of... View full abstract»

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  • Construction of time-limited functions with specified autocorrelation functions

    Publication Year: 1964, Page(s):119 - 126
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1057 KB)

    A necessary and sufficient condition is derived for a function to be the autocorrelation function of a time-limited function of specified length. A constructive procedure for determining all possible time-limited functions having the same autocorrelation function as a given time4imited function is presented. The procedure consists of passing the given time function through one out of a collection ... View full abstract»

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  • On linear residue codes for burst-error correction

    Publication Year: 1964, Page(s):127 - 133
    Cited by:  Papers (12)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1108 KB)

    Linear residue codes are useful for error control in both arithmetic operations and data transmission. When used in data transmission, they do not require special coding equipment, as encoding and decoding operations may be easily carried out in digital computers. In this paper, number-theoretic concepts are used to construct linear residue codes for the correction of burst errors. A general theor... View full abstract»

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  • A decoding procedure for multiple-error-correcting cyclic codes

    Publication Year: 1964, Page(s):134 - 138
    Cited by:  Papers (37)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (563 KB)

    A decoding procedure for multiple-error-correcting cyclic codes is described. This method is very simple in principle and the mechanization is easy for short codes with relatively high redundancy. Applications are made to the cyclic Golay code, the Bose-Chaudhuri<tex>(63, 45), (31, 16), (31, 11)</tex>codes and the<tex>(41, 21)</tex>cyclic codes. A block diagram for a decode... View full abstract»

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  • Signal detection by complex spatial filtering

    Publication Year: 1964, Page(s):139 - 145
    Cited by:  Papers (118)  |  Patents (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1711 KB)

    In the past, spatial filtering in coherent optical systems has been limited by the inability to realize practically a general complex filter. This paper describes a technique for realizing such a filter, and gives an application of spatial filtering to the problem of detecting isolated signals in a variety of noise backgrounds. The experimental results obtained to date indicate that this technique... View full abstract»

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  • On nonparametric signal detectors

    Publication Year: 1964, Page(s):146 - 152
    Cited by:  Papers (29)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1178 KB)

    This paper is a survey and summary of some of the simpler one-input and two-input detection schemes. Particular emphasis is placed on those systems where less than a complete statistical description of the input is required. Such nonparametric detectors offer the advantages of ease of instrumentation and insensitivity to changes in the input statistics while yielding a fixed maximum false alarm ra... View full abstract»

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  • Optimum weighting functions for the detection of sampled signals in noise

    Publication Year: 1964, Page(s):152 - 159
    Cited by:  Papers (23)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1046 KB)

    The problem of designing a linear predetection filter for the detection of a sampled random signal in additive noise is considered. The design of the filter is based on an optimality criterion which maximizes the signal-to-noise ratio enhancement. The optimum weighting function obtained in this manner has the advantage that it is independent of signal characteristics and depends only on the covari... View full abstract»

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  • A note on the correlation function of nonindependent, overlapping pulse trains

    Publication Year: 1964, Page(s):160 - 161
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (213 KB)

    Biorci and Mazzetti<tex>^{1}</tex>have found a general formula for the correlation function of nonindependent, overlapping pulse trains; however, its application involves considerable mathematical difficulties in general.<tex>^{2}</tex>This paper shows how these difficulties can be avoided and it provides, in addition, a necessary and sufficient condition whereby the nonind... View full abstract»

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  • Band-pass nonlinearities

    Publication Year: 1964, Page(s):162 - 164
    Cited by:  Papers (50)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (382 KB)

    This paper presents a simple method for analyzing the effect of a nonlinearity sandwiched between band-pass filters, applying it to the case of weak signals when both filters pass the same band of frequencies, and obtaining completely general expressions for the output signal and noise when the output filter passes a harmonic of the input band. View full abstract»

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  • Entropy of simple line drawings (Corresp.)

    Publication Year: 1964, Page(s):165 - 167
    Cited by:  Papers (4)
    Request permission for commercial reuse | PDF file iconPDF (495 KB)
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  • Periodogram for complex Gaussian random processes (Corresp.)

    Publication Year: 1964, Page(s): 165
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  • An extension of Price's theorem (Corresp.)

    Publication Year: 1964, Page(s): 168
    Cited by:  Papers (18)
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  • On the response of linear systems to certain non-Gaussian random inputs (Corresp.)

    Publication Year: 1964, Page(s):169 - 170
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  • Prime-residue error correcting codes (Corresp.)

    Publication Year: 1964, Page(s): 170
    Cited by:  Papers (3)
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  • Comments on 'A Useful Theorem for Nonlinear Devices Having Gaussian Inputs' by Robert Price

    Publication Year: 1964, Page(s): 171
    Cited by:  Papers (10)
    Request permission for commercial reuse | PDF file iconPDF (67 KB)
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  • Review of 'Low-Density Parity-Check Codes' (Gallager, R. G.; 1963)

    Publication Year: 1964, Page(s): 172
    Cited by:  Papers (1)
    Request permission for commercial reuse | PDF file iconPDF (188 KB)
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Aims & Scope

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

Full Aims & Scope

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