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Proceedings of the IEEE

Issue 5 • May 1982

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Displaying Results 1 - 21 of 21
  • [Front cover and table of contents]

    Publication Year: 1982, Page(s): c1
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  • Scanning the issue

    Publication Year: 1982, Page(s): 419
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  • Silicon as a mechanical material

    Publication Year: 1982, Page(s):420 - 457
    Cited by:  Papers (1579)  |  Patents (314)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (9170 KB)

    Single-crystal silicon is being increasingly employed in a variety of new commercial products not because of its well-established electronic properties, but rather because of its excellent mechanical properties. In addition, recent trends in the engineering literature indicate a growing interest in the use of silicon as a mechanical material with the ultimate goal of developing a broad range of in... View full abstract»

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  • Results from the 19- and 28-GHz COMSTAR satellite propagation experiments at Crawford Hill

    Publication Year: 1982, Page(s):458 - 488
    Cited by:  Papers (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3686 KB)

    Strong interactions of radio waves with rain and ice particles in the lower atmosphere significantly affect the performance of earth-space radio links operating at frequencies above 10 GHz. Because of the uncertainties and variabilities in the microstructures of weather phenomena, direct measurements of the effects of rain and ice on radio propagation are needed for the economic design of reliable... View full abstract»

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  • A comparison of semiconductor devices for high-speed logic

    Publication Year: 1982, Page(s):489 - 509
    Cited by:  Papers (65)  |  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2596 KB)

    The bipolar transistor and FET are compared, considering both today's most advanced implementations and "ultimate" scaled-down devices. The differences between the devices are quantified in terms of transconductance and intrinsic speed. Old limits are re-examined and ways of extending the devices toward their ultimate in performance are proposed. While the major emphasis is on silicon, a compariso... View full abstract»

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  • The transmitted impulse response of a lossy magnetoplasma by a convolution method

    Publication Year: 1982, Page(s):511 - 512
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (207 KB)

    In this note a convolution method is used to find an exact representation in terms of special functions for the transmitted impulse response of a lossy magnetoplasma half space. For an observer deep in the plasma it is shown that the impulse response reduces to a fairly simple expression in terms of integer-order Bessel functions. Also, a comparison is made between the convolution method and the F... View full abstract»

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  • Analysis of 0° hybrid junction constructed with broad-band transmission-line transformer

    Publication Year: 1982, Page(s):512 - 514
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (288 KB)

    A 0° broad-band hybrid constructed with a twisted wire RF transmission-line transformer is analyzed. Simple expressions for isolation, insertion loss, input impedance of various ports, phase unbalance, and amplitude unbalance of the hybrid are derived from the transformer open- and short-circuit impedance parameters and are verified experimentally. View full abstract»

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  • Approximations to two-step diffusion process by Prony's method

    Publication Year: 1982, Page(s):514 - 516
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (256 KB)

    A simple two-term approximation that is accurate over a wide range of drive-in ratios is given for the two-step diffusion process. Comparison with earlier approximations are graphically given. The final approximation is simple and convenient in evaluating the device performance. The Prony's method adopted to approximate erfc(x) is useful in approximating other profiles as well, such as anomalous d... View full abstract»

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  • Approximations to Fermi-Dirac integrals and their use in device analysis

    Publication Year: 1982, Page(s):516 - 518
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (244 KB)

    A simple,single-expression approximation is derived for the Fermi-Dirac (F-D) Integral F1/2(x) in the range -4 ≤ x ≤ +12. This approximation is more accurate (less than 1-percent error throughout) and more useful in device analysis and computer modeling. The approximation procedure is general and can be used to find approximations for F-D Integrals of any order and to any ar... View full abstract»

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  • An analytical solution of the Fokker-Planck equation in the absence of noise

    Publication Year: 1982, Page(s):519 - 520
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (197 KB)

    A Fourier series with time varying coefficients is used to represent the modulo-2π phase error probability density function (pdf) in order to solve the Fokker-Planck (FP) equation as applied to the first-order phase-locked loop (PLL). The Fourier coefficients and hence the pdf are obtained analytically for the case when the initial phase error is a random variable uniformly distributed and th... View full abstract»

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  • Convergence of polynomial least squares estimators

    Publication Year: 1982, Page(s):520 - 522
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (262 KB)

    The rate of convergence of polynomial least squares estimators is derived as a function of its order. Some interesting properties of derivative matrices are exhibited. View full abstract»

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  • On the near-equivalence of envelope and square-law detection of correlated Gaussian noise

    Publication Year: 1982, Page(s):522 - 523
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (242 KB)

    Postdetection integration of radar signals in correlated noise background results in degraded detection performance which is analytically tractable for a square-law detector, but not for the linear envelope detector usually employed in practical radar receivers. It is shown that for stationary Gaussian input noise with arbitrary correlation, the "effective number of integrated independent noise sa... View full abstract»

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  • Microwave imaging of cerebral edema

    Publication Year: 1982, Page(s):523 - 524
    Cited by:  Papers (26)  |  Patents (18)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (515 KB)

    A microwave-transmission technique for detection and monitoring of cerebral edema is presented. It is shown by use of a head model that the microwave signal correlates with variable quantities of excess water. The technique is capable of detecting fluid-volume changes as low as 1 percent. View full abstract»

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  • Signal reconstruction from the output magnitudes of two-dimensional filters

    Publication Year: 1982, Page(s):524 - 525
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (251 KB)

    An algorithm is presented for reconstructuring a two-dimensional complex signal by knowing the magnitudes of two filtered versions of the signal. View full abstract»

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  • Putt's law and the successful technocrat

    Publication Year: 1982, Page(s): 526
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  • Solid-state microwave amplifier design

    Publication Year: 1982, Page(s): 526
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  • Two dimensional digital signal processing I: Linear filters

    Publication Year: 1982, Page(s): 527
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  • Fast Fourier transform and convolution algorithm

    Publication Year: 1982, Page(s): 527
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  • Engineering reliability, new techniques and applications

    Publication Year: 1982, Page(s): 527
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  • Book alert

    Publication Year: 1982, Page(s): 528
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  • [Back cover]

    Publication Year: 1982, Page(s): c4
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H. Joel Trussell
North Carolina State University