Accession Number:

AD0603597

Title:

TIME HISTORY AS AN INFORMATION SOURCE FOR OPERATOR CONTROL OF ORBITAL RENDEZVOUS.

Descriptive Note:

Rept. for Jan-Mar 64,

Corporate Author:

RITCHIE AND ASSOCIATES INC DAYTON OHIO

Report Date:

1964-06-01

Pagination or Media Count:

37.0

Abstract:

A study of operator performance in an orbital rendezvous task was conducted to evaluate a display of the orbit plane X-Y Plane for rendezvous and to determine the effects of presenting a time history of the rendezvous as an aid to the operator. The system dynamics were simulated on an analog computer and an X-Y plotter was used as the display system. Total velocity increment expended and frequency and magnitude of control movements were used as performance indices. Range and range-rate less than 10 ft 3.05 meters x and .5 ftsec .15 meters sec respectively were used as criteria of successful rendezvous. Subjects were instructed to use the twoimpulse orbital transfer technique. Subjects were able to rendezvous successfully both with and without the time history information, thus demonstrating that the orbit plane profile display was satisfactory. The addition of time history information resulted in significantly lower velocity increments than those obtained without the time history. In both cases, the velocity increments were below the theoretical minimum for a line-of-sight rendezvous. Analysis of the stick movement data indicated the operators achieved more efficient control of orbital path with the time history present. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE