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IEEE Transactions on Aerospace and Electronic Systems

Issue 6 • Date Nov. 1975

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  • Table of contents

    Publication Year: 1975, Page(s):c1 - [1427]-b
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  • IEEE Aeroapace and Electronic Systems Society

    Publication Year: 1975, Page(s):c2 - [1427]a
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  • From the Editors

    Publication Year: 1975, Page(s): 981
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  • Applications Technology Satellite-6

    Publication Year: 1975, Page(s):982 - 983
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  • ATS-6 Significance

    Publication Year: 1975, Page(s):984 - 993
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4762 KB)

    The Applications Technology Satellite (ATS-6), the most powerful, most sophisticated, most versatile communications satellite flown to date, is the last of NASA's experimental satellites intended to demonstrate major advances in communications and spacecraft technology. It is a multipurpose, multidisciplinary spacecraft whose principal objectives were to demonstrate a large, unfurlable antenna str... View full abstract»

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  • ATS-6 Description and Performance

    Publication Year: 1975, Page(s):994 - 1003
    Cited by:  Papers (4)  |  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2488 KB)

    The Applications Technology Satellite-6 (ATS-6) uses a 9l1-r parabolic antenna with high gain to enable communications with simple, low-cost ground stations with 3-m-diameter antennas. The structural system met all of its requirements, deployed properly, and preserved sensor alignment within 0.1 degree. The thermal control system has kept all temperatures within specified limits. The communication... View full abstract»

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  • ATS-6 Experiment Summary

    Publication Year: 1975, Page(s):1004 - 1014
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2696 KB)

    The ATS-6 is the most advanced experimental satellite that has evolved from the Application Technology Satellite Program conducted and implemented by NASA Goddard Space Flight Center (NASA/GSFC). This project utilizes a state-of-the-art spacecraft and ground terminal network to perform advance studies and to conduct technological demonstrations in a large number of scientific areas. The design and... View full abstract»

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  • ATS-6 Technical Aspects of the Health/Education Telecommunications Experiment

    Publication Year: 1975, Page(s):1015 - 1032
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (7653 KB)

    The Health/Education Telecommunications (HET) Experiment involved six different experiments conducted under the auspices of the Department of Health, Education, and Welfare (HEW) with technical assistance from NASA. The HET Experiment on ATS-6 was operated and controlled from a network coordination center in Denver, Colo., which included a 4-and 6-GHz Earth station. The HET Experiment used remote ... View full abstract»

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  • ATS-6 Satellite Instructional Television Experiment

    Publication Year: 1975, Page(s):1033 - 1037
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1661 KB)

    The Satellite Instructional Television Experiment (SITE) is scheduled for the second year of satellite operation. Applications Technology Satellite (ATS-6) will receive C-band video signals frorn Abmedabad and Delhi, India, and will retransmitt the video and two audio sub-carriers at 860 MHz to 6 clusters of 400 direct-receive stations for a total of 2400 direct-receive stations. Morning programs ... View full abstract»

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  • ATS-6 Television Relay Using Small Terminals Experiment

    Publication Year: 1975, Page(s):1038 - 1047
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4938 KB)

    The Television Relay Using Small Terminals (TRUST) Experiment was designed to advance and prornote the technology of broadcasting satellites. A constant envelope television FM signal was transmitted at C band to the ATS-6 Earth coverage hom and retransmitted at 860 MHz through the 9-m antenna to a low-cost direct-readout ground station. The experiment demonstrated that high-quality television and ... View full abstract»

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  • ATS-6 Satellite-to-Satellite Tracking and Data Relay Experiments

    Publication Year: 1975, Page(s):1048 - 1058
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2677 KB)

    Thr first radio tracking of one artificial satellite via another began on April 16, 1975. At that time the NASA Applications Technology Satellite6 (ATS-6) geostationary satellite began to relay both tracking and telemetry data from the near-Earth geodynamics satellite, Geos-3. This historic first was followed by the ATS-6 relay of data from the NASA weather satellite, Nimbus-6 launched on June 12,... View full abstract»

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  • ATS-6 Radio Frequency Interference Measurement Experiment

    Publication Year: 1975, Page(s):1059 - 1066
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1906 KB)

    The frequency band from 5.925 to 6.425 GHz is served by fixed satellites and by terrestrial microwave links. There is a possibility of microwave links pointed at the horizon causing interference to the uplinks of domestic and international communications satellites sharing the same frequency band. A mathematical model has been derived for predicting the fields at geostationary orbit based on the k... View full abstract»

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  • ATS-6 Millimeter Wave Propagation and Communications Experiments at 20 and 30 GHz

    Publication Year: 1975, Page(s):1067 - 1083
    Cited by:  Papers (8)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (4233 KB)

    The Applications Technology Satellite (ATS-6) Millimeter Wave Experiment, developed and implemented by the NASA Goddard Space Flight Center, has provided the first direct measurements of 20-and 30-GHz Earth-space links from an orbiting satellite. Studies at eleven locations in the continental United States were directed at an evaluation of rain attenuation effects, scintillations, depolarization, ... View full abstract»

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  • ATS-6 Preliminary Results from the 13/18-GHz COMSAT Propagation Experiment

    Publication Year: 1975, Page(s):1084 - 1094
    Cited by:  Papers (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (6037 KB)

    The 13/18-GHz COMSAT Propagation Experiment (CPE) is reviewed, the data acquisition and processing are discussed, and samples of preliminary results are presented. The need for measurements of both hydrometeor-induced attenuation statistics and diversity effectiveness is brought out The facilitation of the experiment-CPE dual frequency and diversity site location, the CPE ground transmit terminals... View full abstract»

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  • ATS-6 the Geosynchronous, Very High Resolution Radiometer

    Publication Year: 1975, Page(s):1095 - 1102
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (5633 KB)

    The Geosynchronous Very High Resolution Radiometer (GVHRR), flown on the three-axis stabilized geosynchronous satellite, Applications Technology Satellite-6 (ATS-6), collected meteorological data for two months during the summer of 1974. Several hundred images were successfully taken. Data collection terminated when the instrument chopper motor failed. The instrument, its supporting ground equipme... View full abstract»

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  • ATS-6 Radio Beacon Experiment: The First Year

    Publication Year: 1975, Page(s):1103 - 1109
    Cited by:  Papers (3)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1926 KB)

    The Radio Beacon Experiment is designed to measure the total electron content and ionospheric content between the satellite and any observer within its field of view. Since Applications Technology Satellite-6 (ATS-6) is visible from about 43 percent of the Earth's surface, an international community of observers have made measurements using it. The radio parameters have to be measured to an accura... View full abstract»

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  • ATS-6 UCLA Fluxgate Magnetometer

    Publication Year: 1975, Page(s):1110 - 1117
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2343 KB)

    A summary of the design of the University of California at Los Angeles' fluxgate magnetometer is presented. Instrument noise in the bandwidth 0.001 to 1.0 Hz is of order 85 my. The DC field of the spacecraft transverse to the Earth-pointing axis is Sx = 1.0 ±2.1¿, SY = -2.4 ± 1.3¿. The spacecraft field parallel to this axis is less than 5¿. The small spacecraft field has made possible studies... View full abstract»

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  • ATS-6 Solar Cosmic Ray and Trapped Particle Experiment

    Publication Year: 1975, Page(s):1118 - 1124
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2357 KB)

    The Solar Cosmic Ray and Trapped Particle Experiment was designed to study the entry, propagation, and loss of solar cosmic rays and the acceleration and loss of trapped electrons and protons in the magnetosphere. Two orthogonal proton and alpha partical telescopes measure protons from 300 keV to 250 MeV and alphas from 2 MeV to 200 MeV. Electron spectrometers measure electrons from 50 keV to 1 Me... View full abstract»

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  • ATS-6 UCSD Auroral Particles Experiment

    Publication Year: 1975, Page(s):1125 - 1130
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2924 KB)

    The University of California at San Diego (UCSD) Auroral Particles Experiment on the Applications Technology Satellite-6 (ATS-6) consists of five electrostatic charged particle detectors. The features which contribute to the uniqueness of the UCSD data include a rotation capability which often allows sampling very near the direction of the magnetic field, an energy range of five orders of magnitud... View full abstract»

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  • ATS-6 Synchronousi Orbit Trapped Radiation Studies with an Electron-Proton Spectrometer

    Publication Year: 1975, Page(s):1131 - 1137
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2702 KB)

    The University of Minnesota Electron-Proton Spectrometer Experiment consists of two nearly identical detector assemblies. One of these assemblies was mounted in a position fixed on the satellite in the Environmental Measurements Experiments (EME) east direction and the other was rotated so that the spectrometer scanned a range of spatial directions covering 1800 from EME north to EME south through... View full abstract»

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  • ATS-6 Energetic Particle Radiation Measurement at Synchronous Altitude

    Publication Year: 1975, Page(s):1138 - 1144
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2320 KB)

    The Aerospace Corporation energetic electron-proton spectrometer operating on Applications Technology Satellite-6 (ATS-6) detects energetic electrons in four channels between 140 keV and greater than 32 MeV, and measures energetic protons in five energy channels between 2.3 and 80 MeV and energetic alpha particles in three channels between 9.4 and 94 MeV. After more than a year of operation in orb... View full abstract»

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  • ATS-6 NOAA Low Energy Proton Experiment

    Publication Year: 1975, Page(s):1145 - 1154
    Cited by:  Papers (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (2538 KB)

    The National Oceanic and Atmospheric Administration (NOAA) Low Energy Proton Experiment was included as part of the Applications Technology Satellite-6 (ATS-6) Environmental Measurements Experiments (EME) payload to investigate those protons thought to be responsible for the geomagnetic storm-time extraterrestrial ring current and to search for the existence of energetic heavy ions trapped or ener... View full abstract»

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  • ATS-6 Low Energy Electron-Proton Experiment

    Publication Year: 1975, Page(s):1155 - 1157
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1755 KB)

    The Low Energy Electron-Proton Experiment was designed to continually monitor the spectra and pitch angle distributions of electrons and protons from 0 to 22 keV to aid in understanding the mechanisms responsible for substorms. The particle sensors were electrostatic analyzers using electron multiplier detectors. Unfortunately , little data have been obtained because of an unknown mode of interfer... View full abstract»

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  • ATS-6 Spacecraft Attitude Precision Pointing & Slewing Adaptive Control Experiment

    Publication Year: 1975, Page(s):1158 - 1164
    Cited by:  Patents (1)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1708 KB)

    The primary objective of the Spacecraft Attitude Precision Pointing and Slewing Adaptive Control (SAPPSAC) Experiment is to establish feasibility and evaluate capabilities of a ground-based spacecraft attitude control system, wherein RF command and telemetry links, together with a ground station on-line minicomputer, perform closed loop attitude control of the Applications Technology Satellite -6 ... View full abstract»

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  • ATS-6 Interferometer

    Publication Year: 1975, Page(s):1165 - 1169
    Cited by:  Patents (2)
    Request permission for commercial reuse | Click to expandAbstract | PDF file iconPDF (1017 KB)

    The Applications Technology Satellite-6 (ATS-6) RF interferometer is utilized primarily as a precision 3-axis attitude sensor having an unambiguous field of view of 350°. This function requires two separated ground transmitters, each using one of the two available frequency channels or sharing a single channel by time multiplexing. For 3-axis control, one uplink transmitter can provide 2-axis att... View full abstract»

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Aims & Scope

IEEE Transactions on Aerospace and Electronic Systems focuses on the organization, design, development, integration, and operation of complex systems for space, air, ocean, or ground environment.  These systems include, but are not limited to, navigation, avionics, spacecraft, aerospace power, radar, sonar, telemetry, defense, transportation, automated testing, and command and control. 

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Lance Kaplan
Army Research Laboratory