Scheduled System Maintenance
On Tuesday, May 22, IEEE Xplore will undergo scheduled maintenance. Single article sales and account management will be unavailable
from 6:00am–5:00pm ET. There may be intermittent impact on performance from noon–6:00pm ET.
We apologize for the inconvenience.

IEEE Transactions on Information Theory

Volume 34 Issue 6 • Nov. 1988

Filter Results

Displaying Results 1 - 20 of 20
  • Gaussian noise. 1. The shape of large excursions

    Publication Year: 1988, Page(s):1396 - 1400
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (634 KB)

    Work on the parabolic shape of the topmost part of high noise peaks is extended to show that these peaks are all approximately proportional to the autocorrelation function, R( tau ), of the noise. It is shown that the large excursions of the envelope of narrowband Gaussian noise also tend to have the shape of the envelope of its autocorrelation function. View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The distribution of the amplitude and continuous phase of a sinusoid in noise

    Publication Year: 1988, Page(s):1388 - 1395
    Cited by:  Papers (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (536 KB)

    A derivation of the joint distribution of the amplitude and angle of a sinusoid in Gaussian noise is given. No assumptions about the structure of the noise at the output of the post-detection filter are required. However, it is assumed that the Gaussian noise at the input is generated by passing white noise through the bandpass equivalent of a single-pole low-pass filter. Hence, the noise is a two... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Origin of Rice's formula

    Publication Year: 1988, Page(s):1383 - 1387
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (372 KB)

    The origin of S.O. Rice's formula for the average rate of level crossings of a rather general random process is traced to his 1936 private notes entitled Singing Transmission Lines. The notes formulate an engineering problem in terms of the probability distribution of the absolute maximum of an envelope process in a closed interval. Rice showed that if the envelope of the reflected wave on a loade... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Amplitude demodulation of filtered AM/PM signals

    Publication Year: 1988, Page(s):1472 - 1482
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (772 KB)

    The input signal is assumed to be simultaneously amplitude and phase modulated (AM and PM), and the bandpass filter may be unsymmetrical and mistuned. The demodulator output is the magnitude of the filtered signal for an AM receiver or its phase for a PM receiver. For such a system with amplitude demodulation, the results are found and presented in the form of an expansion in which the leading ter... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • An orthonormal Laguerre expansion yielding Rice's envelope density function for two sine waves in noise

    Publication Year: 1988, Page(s):1375 - 1382
    Cited by:  Papers (15)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Through an orthonormal Laguerre expansion, expressions are derived for a lesser known Rician probability distribution-the probability density function (PDF) of the envelope of two fixed-amplitude randomly phased sine waves in narrowband Gaussian noise-and for the integral of the density, the cumulative distribution function (CDF). The principal formula derived has been checked analytically, numeri... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Self-avoiding random loops

    Publication Year: 1988, Page(s):1509 - 1516
    Cited by:  Papers (13)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (652 KB)

    A random loop, or polygon, is a simple random walk whose trajectory is a simple Jordan curve. The study of random loops is extended in two ways. First, the probability Pn(x,y) that a random n-step loop contains a point (x,y) in the interior of the loop is studied, and (1/2, 1/2) is shown to be (1/2)-(1/ n). It is plausible t... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Capacity and error exponent for the direct detection photon channel. II

    Publication Year: 1988, Page(s):1462 - 1471
    Cited by:  Papers (31)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    For pt.I see ibid., vol.34, no.6, p.1449-61 (1980). The discussion of the capacity and error exponent of the direct detection optical channel is continued. The channel input in a T-second interval is a waveform satisfying certain peak and average power constraints for the optical signals. The channel output is a Poisson process with an intensity parameter that accounts for the dark-curren... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • S.O. Rice's contributions to Shannon theory

    Publication Year: 1988
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (108 KB)

    The contributions of S.O. Rice to Shannon's formulations in communication theory are discussed. In `Communication in the presence of noise-Probability of error for two encoding schemes' (see Bell Syst. Tech. J., vol.29, p.60-93, Jan. 1950) Rice considered two explicit construction schemes for choosing the transmitted signals of duration T and exhibited an exact formula for the probability... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Retrials and balks (queueing)

    Publication Year: 1988, Page(s):1502 - 1508
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    An overloaded service system may reject customers if it has no queue to store them. In practice, rejected customers return later to make retrials and may not leave permanently (balk) until several retrials fail. A single-server system with Poisson arrivals is examined in which rejected customers balk or make retrials according to a simple probabilistic model. Customer service times are independent... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Capacity and error exponent for the direct detection photon channel. I

    Publication Year: 1988, Page(s):1449 - 1461
    Cited by:  Papers (124)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (728 KB)

    The capacity and the lower bound on the error exponent of a direct detection optical channel are derived. The channel input in a T-second interval is a waveform satisfying certain peak and average power constraints for the optical signal. The channel output is a Poisson process with a given intensity parameter; the intensity parameter takes account of the dark-current signal component. An... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • S.O. Rice and the theory of random noise: some personal recollections

    Publication Year: 1988, Page(s):1367 - 1373
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (648 KB)

    A short personal account is given of the author's long association with S.O. Rice and their common interests in noise modelling and nonlinear processing. This association started during World War II and continued until Rice's death. Some personal history is provided, and the early and continuing influence of Rice's work, particularly his Mathematical Analysis of Random Noise (see Bell Syst. Tech. ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Gaussian noise. II. Distribution of phase change of narrow-band noise plus sinusoid

    Publication Year: 1988, Page(s):1401 - 1405
    Cited by:  Papers (20)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (388 KB)

    For pt.I see ibid., vol.34, no.6, p.1396-1400 (1988). Approximate expressions are obtained for the distribution of the change in phase of a narrowband Gaussian noise plus a sinusoid during a long time interval. The expressions are based on S.O. Rice's results concerning the expected number of clicks in an FM receiver during the interval and on work stemming from his expression for the correlation ... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • The phase of a vector perturbed by Gaussian noise and differentially coherent receivers

    Publication Year: 1988, Page(s):1491 - 1501
    Cited by:  Papers (117)  |  Patents (6)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (664 KB)

    Some results are presented regarding the asymptotic distribution of the phase of a vector perturbed by Gaussian noise. It is shown that for large signal-to-noise ratio, the asymptotic distribution of the phase is of the Tikhonov type. This framework is then used for the synthesis of differentially coherent receiver structures, one for M -ary phase-shift keying (MPSK) and the other for min... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Radio imaging of moving targets: the one-dimensional case (microwave range)

    Publication Year: 1988, Page(s):1528 - 1537
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (752 KB)

    The detection of moving targets by passive radio temperature measurements is studied. A radio image is reconstructed by linear spatial filtering of simultaneous measured brightness samples, obtained by multiple regularly spaced antenna beams. With fixed spatial filters, the receiver integration time must be short enough to freeze motion, thus limiting the signal-to-noise ratio obtained in the reco... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the minimum distance problem for faster-than-Nyquist signaling

    Publication Year: 1988, Page(s):1420 - 1427
    Cited by:  Papers (98)  |  Patents (75)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (568 KB)

    The authors reconsider the problem of determining the minimum distance between output sequences of an ideal band-limiting channel that are generated by uncoded binary sequences transmitted at a rate exceeding the Nyquist rate. For signaling rates up to about 25% faster than the Nyquist rate, it is shown that the minimum distance does not drop below the value which it would have in the ideal case w... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Characterizing filtered light waves corrupted by phase noise

    Publication Year: 1988, Page(s):1437 - 1448
    Cited by:  Papers (132)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (928 KB)

    The phase noise associated with single-mode semiconductor lasers must be accounted for in performance studies of lightwave communication systems. The standard phase noise model is a Brownian-motion stochastic process. Although many analyses of lightwave communication systems have been published, none, to the authors knowledge, has fully adhered to the standard model. The reason is that a proper ch... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Phase-difference distribution for a narrow-band non-Gaussian noise and related statistics

    Publication Year: 1988, Page(s):1483 - 1490
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (436 KB)

    A probability density function Pm(R1,R2,Δ) is presented for a narrowband noise process in which R1 and R2 are two envelope samples and Δ is the phase difference. For m=1 the process is Gaussian, but for m=2,3, etc., it is non-Gaussian. New second-order statistical properties are... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Approximately optimum detection of deterministic signals in Gaussian and compound Poisson noise

    Publication Year: 1988, Page(s):1517 - 1527
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (684 KB)

    An approximate but explicit likelihood ratio is derived for detecting deterministic signals in Gaussian and compound Poisson noise. The approximation in the derivation is based on the assumption that the localized noise elements rarely overlap each other. The derived log-likelihood ratio consists of two distinct parts. One is the conventional correlation detector for detecting deterministic signal... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • On the Rice model of noise in FM receivers

    Publication Year: 1988, Page(s):1406 - 1419
    Cited by:  Papers (14)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (968 KB)

    The so-called click-and-Gaussian-noise model for the output of a limiter-discriminator receiver for frequency-modulated signals, first proposed by S.O. Rice in 1963, is reviewed. A short survey is presented of the subsequent research that it generated and of some practical applications that it motivated. A more detailed analysis of parameters encountered in the Rice model is carried out with empha... View full abstract»

    Full text access may be available. Click article title to sign in or learn about subscription options.
  • Infinite series of interference variables with Cantor-type distributions

    Publication Year: 1988, Page(s):1428 - 1436
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (584 KB)

    The sum of an infinite series of weighted binary random variables arises in communications problems involving intersymbol and adjacent-channel interference. If the weighting decays asymptotically at least exponentially and if the decay is not too slow, the sum has an unusual distribution which has neither a density nor a discrete mass function, and therefore cannot be manipulated with usual techni... View full abstract»

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

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
Prakash Narayan 

Department of Electrical and Computer Engineering