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IEEE Transactions on Geoscience Electronics

Issue 4 • Date Oct. 1970

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Displaying Results 1 - 25 of 35
  • Table of contents

    Publication Year: 1970, Page(s): c1
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    Freely Available from IEEE
  • IEEE Geoscience Electronics Group

    Publication Year: 1970, Page(s): c2
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    Freely Available from IEEE
  • Introductory Remarks

    Publication Year: 1970, Page(s): 185
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    Freely Available from IEEE
  • Ecological Statistical Studies concerning Environmental Pollution and Chronic Disease

    Publication Year: 1970, Page(s):186 - 202
    Cited by:  Papers (14)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3858 KB)

    Ecological statistical studies employing methods of multivariate analysis, based on a radiomimetic or mutagenic hypothesis, have yielded a number of statistically significant multiple regression equations in which concentrations of environmental chemicals, largely air pollutants, predict annual mortality rates for major categories of cancer and heart disease, as well as for congenital malformation... View full abstract»

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  • Lunar Surface Magnetometer

    Publication Year: 1970, Page(s):203 - 215
    Cited by:  Papers (10)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5731 KB)

    The lunar surface magnetometer is one of five instruments in the Apollo lunar surface experiments package (ALSEP). It measures three components of the vector magnetic field in the range 0 to 400¿ with a resolution of 0.2¿ and a frequency response from dc to 3 Hz. This instrument also has a gradient measuring capability, making it an automatic magnetic observatory on the lunar surface. The magnet... View full abstract»

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  • An Overview of the Orbiting Astronomical Observatory

    Publication Year: 1970, Page(s):215 - 221
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    The world's first Orbiting Astronomical Observatory, OAO-II, was launched by the U.S.A. on December 7, 1968. Over one year of operation has proven its design concepts and utility. Built in an octahedron shape, 10 feet by 7 feet, the satellite weighs 4400 pounds. Two experiments are located centrally within the space-craft, each viewing space from opposite ends. Both experiments contain multiple op... View full abstract»

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  • Instrumentation for the OAO Experiments

    Publication Year: 1970, Page(s):221 - 225
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3026 KB)

    As predicted in early planning for the exploitation of space technology, astronomy stands to benefit greatly from observations made in wavelengths blocked to earthbound view by the earth's atmosphere. The first to be attacked has been the ultraviolet spectral region, where young hot stars have their peak energy emission. The Orbiting Astronomical Observatory (OAO) series of NASA satellites at pres... View full abstract»

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  • OAO Ground System and Operations

    Publication Year: 1970, Page(s):225 - 231
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5034 KB)

    Astronomy has taken a significant step forward with the success of NASA's Orbiting Astronomical Observatory designated OAO-A2. This 4400-pound satellite, the heaviest and most complex unmanned observatory developed by the United States, was launched on December 7, 1968 from Cape Kennedy. On April 5, 1970 it was in its 485th day of operation which represents almost 7000 orbits of which 88 percent h... View full abstract»

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  • The OAO Simulation System

    Publication Year: 1970, Page(s):231 - 233
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (646 KB)

    A simulation of the Orbiting Astronomical Observatory (OAO) is described. The simulator was a hybrid comprised of a prototype spacecraft and a digital computer and was capable of simulating virtually all the functions of an orbiting OAO spacecraft as well as a large number of possible malfunctions. Optical stimuli and a solar array simulator on the prototype spacecraft were elements of the simulat... View full abstract»

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  • Space Astronomy: Present Reality and Future Prospects

    Publication Year: 1970, Page(s):234 - 240
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5753 KB)

    Results of the Orbiting Astronomical Observatory (OAO) observations of comets, novae, and galaxies are described as benefits from maintaining a continuous observing capability in space. The increased capabilities of the next two OAOs are cited as providing the basis for future astronomy missions. A practical and economical approach to space astronomy is developed on the basis of commonalty at the ... View full abstract»

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  • Introduction to the Nimbus Meteorological Satellite Program

    Publication Year: 1970, Page(s):241 - 242
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (410 KB)

    The Nimbus program is the nation's major research and development satellite program aimed at developing and exploiting space technology for meteorological and other application purposes. The program envisioned, and has achieved, the development of a series of large amply powered earth-stabilized spacecraft which use a near-polar circular orbit at the 600-nmi height to provide full earth coverage e... View full abstract»

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  • Interrogation, Recording, and Location System

    Publication Year: 1970, Page(s):243 - 245
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (514 KB)

    The interrogation, recording, and location system (IRLS) is a satellite technological experiment designed to demonstrate the feasibility of determining position location and collecting scientific data from remote instrumented platforms deployed on a global scale on, or above, the surface of the earth. The system utilizes a range-range location technique which yields solutions as the intersection o... View full abstract»

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  • The Versatile Information Processor: A Unique Concept for an Adaptable Satellite Telemetry System

    Publication Year: 1970, Page(s):246 - 255
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2174 KB)

    A data-handling concept is described which provides a great degree of flexibility in the sampling and formatting of satellite data, the flexibility being achieved without design or wiring changes. The system was conceived and breadboarded at Goddard Space Flight Center and is now successfully flying on the Nimbus IV spacecraft. View full abstract»

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  • The SNAP-19 Radioisotopic Thermoelectric Generator Experiment

    Publication Year: 1970, Page(s):255 - 264
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2246 KB)

    The Nimbus III/SNAP-19 launch on April 14, 1969, represented the first flight of a nuclear power supply on a NASA observatory and the culmination of six years of interagency effort between NASA and the AEC. The SNAP-19 consists of two generators, two dc-dc converters, and a telemetry signal conditioning unit. Power is produced by converting the radioactive heat of decay of the isotope Pu-238 in a ... View full abstract»

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  • Nimbus Satellite Infrared Spectrometer Experiment

    Publication Year: 1970, Page(s):264 - 270
    Cited by:  Papers (5)  |  Patents (4)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3383 KB)

    Two infrared grating spectrometers have been developed for the Nimbus meteorological satellite program to determine the feasibility of indirectly sensing vertical atmospheric temperature and humidity profiles from space. Each instrument senses radiation in the 15 ¿m carbon dioxide band. The second instrument flown on Nimbus IV, has the added capability of a sensing-beam scan for better geographic... View full abstract»

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  • Electronic Implementation for Semiactive Attitude Control System

    Publication Year: 1970, Page(s):271 - 277
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4423 KB)

    On August 9, 1969, the National Aeronautics and Space Administration launched a little publicized but successful control system, utilizing the second stage of the Delta booster used to inject the Orbiting Solar Observatory into orbit. This experiment demonstrated the feasibility of a new low-cost attitude control system with potential for making platforms for earth-oriented experiments out of othe... View full abstract»

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  • An Ion Energy Analyzer with On-Board Data Reduction

    Publication Year: 1970, Page(s):277 - 278
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1125 KB)

    An ion energy analyzer with on-board data reduction techniques has been developed to measure ion temperature and ion concentration with very high temporal resolution. The basic concept employed is to differentiate the characteristic volt-ampere curve within the instrument and to detect and store the maximum of the differentiated signal. This information coupled with the maximum ion concentration, ... View full abstract»

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  • Preliminary Design of a Tornado Probe

    Publication Year: 1970, Page(s):279 - 284
    Cited by:  Papers (1)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1239 KB)

    An interdisciplinary design team at Purdue University, Lafayette, Ind., is developing a system for probing tornadoes. The objective of the program is to obtain horizontal profiles of temperature, pressure, wind velocity, and magnetic field in and around a tornado vortex. The present plan for achieving these objectives includes an aircraft to search for tornadoes on "tornado days." Upon sighting a ... View full abstract»

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  • Fog and Space Charge

    Publication Year: 1970, Page(s):285 - 288
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1474 KB)

    In a cloud chamber of 25 m3, the precipitation of a fog, composed of water droplets smaller than 20 ¿¿m in diameter, was investigated. Electrostatic charge was introduced through a corona discharge (between a thin wire or two wires of opposite polarity and a large grounded plane) pulse lasting from 0.2 to 1 second. Experiments have shown that the fog is unaffected by small electric charge. The mod... View full abstract»

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  • Geophysical Dielectric Constant Determination

    Publication Year: 1970, Page(s):289 - 295
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    A theoretical correlation technique, based on data derived from the geophysical experimental results available in the literature, is offered for typical earth and planetary surface-soil dielectric constants and conductivity. Then an experimental equipment design is given for use in such work. This instrumentation was built and used at the University of Houston to verify the said technique. A simil... View full abstract»

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  • Portable 30-Day Unattended System for Recording Earth Strain in a 66-dB Range

    Publication Year: 1970, Page(s):295 - 305
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3564 KB)

    Earth strains of approximately 1 × 10-9 to 1 × 10-5 in the frequency range 0-0.1 Hz are recorded on magnetic tape with a 30-day unattended recording capability. Strains over a horizontal 6-meter interval are detected by a dual variable-capacitance transducer attached to a quartz-tube translating member. Differential earth displacements sensed by capacitor plates are converted to variations in os... View full abstract»

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  • Impulse Drive Recorder

    Publication Year: 1970, Page(s):306 - 308
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    A new type of strip-chart recorder is described that has been used extensively on high-altitude balloon flights. Driven by a stepper motor and powered by a wide-range timing circuit, it maintains an accurate timne base. The unit is particularly suited to applications where severe environmental conditions are encountered and low battery drain operation is necessary. View full abstract»

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  • A Computer System for Signal Analysis at a Remote Terminal

    Publication Year: 1970, Page(s):309 - 312
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1642 KB)

    A computer system which is operated from a remote terminal has been developed at Battelle Memorial Institute, Pacific Northwest Laboratories, to perform Fourier-transform analysis on time data rapidly and accurately. As many as 512 samples can be taken at frequencies up to 20 kHz, or digital data can be read directly into the computer memory. Fourier transforms, cross spectra, and autospectra can ... View full abstract»

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  • System Requirements for Underwater Acoustic Holographic Mapping

    Publication Year: 1970, Page(s):313 - 320
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1430 KB)

    The relations among the holographic parameters of focal length, aperture, and wavelength and the system parameters of resolution and stability in the horizontal and vertical are developed for the application of acoustic holography to mapping and searching the sea floor. The relative advantages of pulsed and continuous acoustic sources are discussed, the concept of the sanitized signals from a puls... View full abstract»

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  • Optical and Magnetic Instruments for Mapping the Ocean Floor

    Publication Year: 1970, Page(s):320 - 325
    Cited by:  Patents (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (3556 KB)

    Ocean-floor mapping requires good geodetic control and the use of sensors capable of detecting features on and below the water-bottom interface. Optical sensors have been useful. Film cameras with their permanent record are preferable to human observers and television. Since the loss of the Thresher the effectiveness of cameras has been increased by the use of wide-angle lenses and larger film loa... View full abstract»

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Aims & Scope

This Transactions ceased production in 1979. The current retitled publication is IEEE Transactions on Geoscience and Remote Sensing.

Full Aims & Scope