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  • SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING  (2)
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  • 1
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    Delta VLBI spacecraft tracking system demonstration. Part 1: Design and planning (1978)
    In:  Other Sources
    Details
    Publication Date: 2011-08-17
    Description: The current status of planned delta very long base interferometry (VLBI) navigation during Voyager Jupiter encounters is discussed. It is indicated that angular accuracies of 0.05 microrads are possible and that near real time data transmission can be achieved with minimal station hardware and software modifications. A software correlator and phase tracking program, operating on the SFOF IBM 360, used for data processing is described.
    Keywords: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
    Type: The Deep Space Network; p 111-132
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Wideband Delta VLBI for deep space navigation (1980)
    In:  Other Sources
    Details
    Publication Date: 2019-07-13
    Description: Developments in the area of deep space tracking and navigation during the last decade are briefly reviewed, and advantages offered by wideband differential Very Long Baseline Interferometry (Delta VLBI) are discussed. Delta VLBI data from a spacecraft and an angularly nearby extragalactic radio source promise to provide a factor of five improvement in deep space navigation accuracies as compared with those presently obtained by conventional radiometric tracking. Results of a restricted bandwidth demonstration of wideband Delta VLBI employing the Voyager spacecraft are analyzed.
    Keywords: SPACE COMMUNICATIONS, SPACECRAFT COMMUNICATIONS, COMMAND AND TRACKING
    Type: In: PLANS ''80 - Position Location and Navigation Symposium; Dec 08, 1980 - Dec 11, 1980; Atlantic City, NJ
    Format: text
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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