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Author Ludwig, George H.
Sponsorship IEEE Nuclear and Plasma Sciences Society ♦ Computer Applications in Nuclear and Plasma Sciences (CANPS) ♦ Lawrence Berkeley Lab. ♦ Lawrence Livermore Nat. Lab. ♦ APS ♦ College of William and Mary ♦ Continuous Electron Beam Accelerator Facility ♦ NASA ♦ Defence Nuclear Agency ♦ Sandia National Laboratories ♦ Jet Propulsion Laboratory ♦ Brookhaven Nat. Lab. ♦ Lawrence Livermore Nat. Lab ♦ IEEE/NPPS Radiat. Effects Committee ♦ Defence Nuclear Agency/DoD ♦ Sandia National Laboratories/DOE ♦ Jet Propulsion Laboratory/NASA ♦ Phillips Lab./DoD
Source IEEE Xplore Digital Library
Content type Text
Publisher Institute of Electrical and Electronics Engineers, Inc. (IEEE)
File Format PDF
Copyright Year ©1963
Language English
Subject Domain (in DDC) Natural sciences & mathematics ♦ Physics ♦ Modern physics ♦ Technology ♦ Medicine & health ♦ Engineering & allied operations ♦ Applied physics
Subject Keyword Data processing ♦ Space vehicles ♦ Sorting ♦ Computer displays ♦ Instruments ♦ Sensor phenomena and characterization ♦ Data acquisition ♦ Decoding ♦ Quality control ♦ Large-scale systems
Abstract Spacecraft carrying large numbers of scientific instruments are presently transmitting data at the rate of approximately 100 million data points per day. The outputs of the sensors are partially processed on the spacecraft and transmitted to the ground. These data must then be converted from raw digital form into a conceptually meaningful form which the experimenters can analyze and from which they can draw valid conclusions about the phenomena being measured. At present the ground processing is done in several steps. The first includes conversion of the raw data acquisition station tapes into computer tapes and includes signal clean-up, establishment of synchronization, and time decoding. In the newest processing lines this first step also includes a moderate amount of editing and quality control. The rest of the steps involve large scale computers and include further editing, establishment of accurate timing, computation of the spacecraft attitude, and sorting, to provide data tapes for the individual experimenters. The experimenters have the responsibility for the further reduction to more meaningful form. These operations include further sorting, storage, compilation, computation, and display. There is at present a great need for additional development of analysis and display programs, techniques, and equipment to assist in this work.
Description Author affiliation :: Goddard Space Flight Center Greenbelt, Maryland
ISSN 00189499
Education Level UG and PG
Learning Resource Type Article
Publisher Date 1967-02-01
Publisher Place U.S.A.
Rights Holder Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Volume Number 14
Issue Number 1
Size (in Bytes) 2.69 MB
Page Count 8
Starting Page 626
Ending Page 633


Source: IEEE Xplore Digital Library