Proceedings of the IEEE

Issue 1 • Jan. 1985

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Displaying Results 1 - 25 of 27
  • [Front cover and table of contents]

    Publication Year: 1985, Page(s): c1
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  • The special section on near-millimeter waves

    Publication Year: 1985, Page(s):3 - 4
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  • Scanning the issue

    Publication Year: 1985, Page(s): 3
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  • Response change in linearized circuits and systems: Computational algorithms and applications

    Publication Year: 1985, Page(s):5 - 24
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1847 KB)

    A unified overview of linear and nonlinear system response change induced by multiparameter or state change is presented via an investigation of system equations transformed to a parameter based representation. General matrix modification formulas, applicable to analog and digital systems, are developed for both small and large change response sensitivities. Numerous previous response change resul... View full abstract»

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  • Performance comparison of analog and digital circuits

    Publication Year: 1985, Page(s):25 - 29
    Cited by:  Papers (27)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (382 KB)

    It is the purpose of this paper to compare analog and digital semiconductor circuits. Using simple models, performance of these circuits will be evaluated as far as signal-to-noise ratio, power dissipation, bandwidth, and system capacity are concerned. View full abstract»

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  • Boolean operations in solid modeling: Boundary evaluation and merging algorithms

    Publication Year: 1985, Page(s):30 - 44
    Cited by:  Papers (103)  |  Patents (8)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1310 KB)

    Solid modeling plays a key role in electromechanical CAD/CAM, three-dimensional computer graphics, computer vision, robotics, and other disciplines and activities that deal with spatial phenomena. Almost all contemporary solid modeling systems support Boolean operations akin to set intersection, union, and difference on solids. Boundary representations (face/edge/vertex structures) for solids defi... View full abstract»

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  • Near-millimeter waves

    Publication Year: 1985, Page(s):45 - 48
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (424 KB)

    This paper provides a brief overview of the field of near-millimeter waves and serves as an introduction to the five following papers. The nomenclature and spectral regions are defined and a historical summary is given. Brief comments are then given about the contents of the succeeding articles. View full abstract»

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  • Atmospheric effects on near-millimeter-wave propagation

    Publication Year: 1985, Page(s):49 - 60
    Cited by:  Papers (19)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1251 KB)

    Utilization of the near-millimeter-wave band is limited by atmospheric effects on propagation. Although this paper is restricted to clear-air effects, it is pointed out that these phenomena, which are molecular in origin, are also present to a significant degree in adverse weather. The paper surveys theoretical and observational knowledge concerning absorption, emission, refraction, and turbulence... View full abstract»

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  • A review of optically pumped NMMW lasers

    Publication Year: 1985, Page(s):61 - 85
    Cited by:  Papers (9)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2383 KB)

    Near-millimeter-wave (NMMW) gas lasers, which are optically excited with a CO2pump laser, are currently the major sources of coherent radiation in the NMMW region (100 to 1000 GHz). These molecular sources are especially useful at NMMW frequencies > 300 GHz where conventional millimeter-wave sources have serious disadvantages. Optically pumped NMMW lasers can provide tens of milliwat... View full abstract»

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  • Near-millimeter-wave sources of radiation

    Publication Year: 1985, Page(s):86 - 108
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1612 KB)

    This paper describes coherent sources of radiation useful in the near-millimeter-wavelength spectrum, generally taken to span the range of about 80 to 1000 GHz; however, both optically pumped and discharge pumped lasers are excluded from this treatment, since these devices are adequately covered elsewhere. Included in this discussion are solid-state sources such as IMPATTs and Gunn devices; tube s... View full abstract»

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  • Low-noise heterodyne receivers for near-millimeter-wave radio astronomy

    Publication Year: 1985, Page(s):109 - 130
    Cited by:  Papers (10)  |  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (2113 KB)

    Increased interest in the near-millimeter wavelength region, covering the range 3 mm to 300 µm, during the past decade has stimulated the development of sensitive heterodyne receivers for a wide range of applications. This review paper considers current low-noise receiver technology with emphasis on applications in radio astronomy. A brief discussion of the astrophysical importance of radio a... View full abstract»

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  • Millimeter-wave dielectric measurement of materials

    Publication Year: 1985, Page(s):131 - 153
    Cited by:  Papers (78)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (1514 KB)

    It is no longer necessary to use extrapolated microwave dielectric values when designing millimeter-wave components and systems. Very recently, highly accurate millimeter-wave (5- to 1/2-mm) data on complex dielectric permittivity and loss tangent have become available to engineers for a variety of materials such as common ceramics, semiconductors, crystalline, and glass materials. One quasi-optic... View full abstract»

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  • A dual theorem on the summation of return differences

    Publication Year: 1985, Page(s):157 - 159
    Cited by:  Papers (4)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (216 KB)

    It is shown that based on the indefinite-impedance matrix formulation, the sum of the reciprocals of the return differences with respect to all network elements of a planar network equals the rank of the network. Some consequences of this theorem in relation to the summation of driving-point and transfer network admittances are discussed. View full abstract»

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  • A nondifferentiable pulse with a more band-limited spectrum than a differentiable one

    Publication Year: 1985, Page(s):159 - 160
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (186 KB)

    This letter contrasts two interpolating pulses with four sampling interval durations which interpolate cubic polynomials between successive samples. One yields an everywhere differentiable interpolant and the other an interpolant which is more band-limited despite not being everywhere differentiable. The continual need to interpolate intermediate values between data samples which arises in image p... View full abstract»

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  • A note on Jury's stability test and Kalman-Bertram's Liapunov function

    Publication Year: 1985, Page(s):160 - 161
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (185 KB)

    Jury's stability test for discrete systems is simplified to the Routh algorithm. Based on the elements obtained from the new formulation, a Liapunov function is synthesized; in turn, by using the second method of Liapunov, the stability criterion is proven. View full abstract»

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  • An electrooptical adder

    Publication Year: 1985, Page(s):162 - 163
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (231 KB)

    A prototype for a binary adder, in which the carry propagation is handled by light signals is suggested, thus enabling a fast execution of addition operation even for large operands. View full abstract»

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  • Order filters

    Publication Year: 1985, Page(s):163 - 165
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (250 KB)

    As a generalization of the median and rank filters [1]-[3], the concept of an order filter as a useful signal and image processing tool is introduced. This filter obtains a best estimate of the signal based on its order statistics. The optimal design of such a filter is illustrated in the context of the problem of envelope estimation. Other applications are also briefly mentioned. View full abstract»

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  • Simple derivation of a general sensitivity formula for lossless two-ports

    Publication Year: 1985, Page(s):165 - 166
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (171 KB)

    A simple, yet comprehensive proof of an important sensitivity formula for lossless two-ports stated by Orchard, Temes, and Cataltepe is presented. Our derivation invokes the principle of conservation of energy and the lossless property of the network under consideration and employs the Cauchy-Riemann equations of complex differentiation. Hence, it bears clear physical interpretation and mathematic... View full abstract»

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  • A method of resolving data into two maximally smooth components

    Publication Year: 1985, Page(s):166 - 168
    Cited by:  Papers (5)
    Request permission for commercial reuse | Click to expandAbstract |PDF file iconPDF (276 KB)

    An algorithm is described which resolves data into maximally smooth components given some knowledge of the relative behavior of these components. The algorithm is used to analyze the specific problem of resolving frequency-domain scattering data from a complex target into two components associated with different areas of the target. The resulting matrix problem is not only well conditioned but als... View full abstract»

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  • Comments on "NAVSTAR: Global positioning system—Ten years later"

    Publication Year: 1985, Page(s): 168
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  • Engineers & electrons

    Publication Year: 1985, Page(s): 169
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  • Digital picture processing

    Publication Year: 1985, Page(s):169 - 170
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  • An introduction to the analysis and processing of signals

    Publication Year: 1985, Page(s): 170
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  • Secure communications and asymmetric cryptosystems

    Publication Year: 1985, Page(s): 171
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  • Knowledge based systems in artificial intelligence

    Publication Year: 1985, Page(s):171 - 172
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The most highly-cited general interest journal in electrical engineering and computer science, the Proceedings is the best way to stay informed on an exemplary range of topics.

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Meet Our Editors

Editor-in-Chief
H. Joel Trussell
North Carolina State University