Item Details

Analytical and Preliminary Simulation Study of a Pilot's Ability to Control the Terminal Phase of a Rendezvous With Simple Optical Devices and a Timer

by Edgar C. Lineberry, Jr., Roy F. Brissenden, and Max C. Kurbjun
Format
Book; Government Document; Online; EBook
Published
Washington, [D.C.] : National Aeronautics and Space Administration, 1961.
Language
English
Series
NASA Technical Note
Summary
One method of controlling the terminal phase of a space rendezvous between two vehicles is first to correct the flight path of the controlled vehicle so that a constant line of sight is established between the vehicles. This correction is accomplished by thrusting normal to the sight line in a direction to arrest the angular motion of this line. Once this collision course has been established, the second step is to control the closure rate for a safe approach along the line of sight. Adequate control of this maneuver requires range and closure-rate information. A combined analytical and preliminary simulation study was conducted to determine the ability of a human pilot to control the rendezvous by this method using visual sightings made during the initial collision-course control to obtain the range and closure rate. The analytical phase of the study reviewed the geometric relations between the vehicles and formed the basis for techniques to transform the angular sightings into range and closure rate. A preliminary simulation was then made to investigate the accuracy of these techniques. The simulation consisted of an analog computer, an oscilloscope to represent the view a pilot would have-with a stabilized sight, and a timer. Results indicate that pilots, using an optical sight and a timer, can successfully arrest the angular motion of the line of sight between two rendezvous vehicles and obtain relative range and closure rate with sufficient accuracy to perform the final braking maneuver successfully.
Description
23 p. : ill. ; 26 cm.
Mode of access: Internet.
Notes
  • Report Number: L-1697.
  • Document ID: 19980227998.
  • "NASA TN D-965."
  • "Langley Research Center, Langley Air Force Base, Va."
  • "October 1961."
  • Cover title.
  • Includes bibliographical references (p. 13).
Series Statement
NASA technical note ; D-965
Other Forms
Also available from the NASA Technical Reports Server (http://ntrs.nasa.gov/). Address as of 4/11/07: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19980227998_1998386543.pdf.
Logo for No Copyright - United StatesNo Copyright - United States
Technical Details

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    a| Analytical and preliminary simulation study of a pilot's ability to control the terminal phase of a rendezvous with simple optical devices and a timer / c| by Edgar C. Lineberry, Jr., Roy F. Brissenden, and Max C. Kurbjun.
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    a| Washington, [D.C.] : b| National Aeronautics and Space Administration, c| 1961.
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    a| 23 p. : b| ill. ; c| 26 cm.
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    a| NASA technical note ; v| D-965
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    a| Report Number: L-1697.
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    a| Document ID: 19980227998.
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    a| "NASA TN D-965."
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    a| "Langley Research Center, Langley Air Force Base, Va."
    500
      
      
    a| "October 1961."
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    a| Cover title.
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    a| Includes bibliographical references (p. 13).
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    a| One method of controlling the terminal phase of a space rendezvous between two vehicles is first to correct the flight path of the controlled vehicle so that a constant line of sight is established between the vehicles. This correction is accomplished by thrusting normal to the sight line in a direction to arrest the angular motion of this line. Once this collision course has been established, the second step is to control the closure rate for a safe approach along the line of sight. Adequate control of this maneuver requires range and closure-rate information. A combined analytical and preliminary simulation study was conducted to determine the ability of a human pilot to control the rendezvous by this method using visual sightings made during the initial collision-course control to obtain the range and closure rate. The analytical phase of the study reviewed the geometric relations between the vehicles and formed the basis for techniques to transform the angular sightings into range and closure rate. A preliminary simulation was then made to investigate the accuracy of these techniques. The simulation consisted of an analog computer, an oscilloscope to represent the view a pilot would have-with a stabilized sight, and a timer. Results indicate that pilots, using an optical sight and a timer, can successfully arrest the angular motion of the line of sight between two rendezvous vehicles and obtain relative range and closure rate with sufficient accuracy to perform the final braking maneuver successfully.
    530
      
      
    a| Also available from the NASA Technical Reports Server (http://ntrs.nasa.gov/). Address as of 4/11/07: http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19980227998_1998386543.pdf.
    538
      
      
    a| Mode of access: Internet.
    650
      
    7
    a| Oscilloscopes. 2| nasat
    650
      
    7
    a| Visual perception. 2| nasat
    650
      
    7
    a| Rendezvous trajectories. 2| nasat
    650
      
    7
    a| Line of sight. 2| nasat
    650
      
    7
    a| Angular velocity. 2| nasat
    650
      
    7
    a| Optical equipment. 2| nasat
    650
      
    7
    a| PIlot performance. 2| nasat
    650
      
    7
    a| Space rendezvous. 2| nasat
    650
      
    7
    a| Flight paths. 2| nasat
    700
    1
      
    a| Kurbjun, Max C.
    700
    1
      
    a| Brissenden, Roy F.
    710
    1
      
    a| United States. b| National Aeronautics and Space Administration.
    710
    2
      
    a| Langley Research Center.
    974
      
      
    b| UIU c| UIUC d| 20141113 s| google u| uiug.30112106915108 y| 1961 r| pd q| bib

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