Accession Number : AD0602264

Title :   SIMPLIFIED SELECTION OF OPTICAL FIX DATA AND A SIMPLIFIED GUIDANCE TECHNIQUE.

Descriptive Note : Master's thesis,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE

Personal Author(s) : Holbrow,Willmore Frederick ,Jr.

Report Date : JUN 1964

Pagination or Media Count : 76

Abstract : A selective strategy for optical measurements in interplanetary navigation is shown in which the geometry of the situation dictates the decision. Variable time of arrival guidance is explained and correction velocities are computed using perturbation method and a simplified method based on the line of sight to the destination. The perturbation method is used as the ideal case for finding an empirical relation based on the line of sight. The empirical method derived could be used to check the computer solution in an actual flight since it may be easily calculated manually by an astronaut. (Author)

Descriptors :   (*SPACE NAVIGATION, DECISION THEORY), (*CELESTIAL GUIDANCE, INTERPLANETARY TRAJECTORIES), GUIDANCE, MIDCOURSE GUIDANCE, PERTURBATION THEORY, MATHEMATICAL MODELS, TARGET DESIGNATORS, POSITION FINDING, CELESTIAL NAVIGATION, PROJECTIVE GEOMETRY, OPTICS, CORRECTIONS, OPTICAL TARGET DESIGNATORS

Distribution Statement : APPROVED FOR PUBLIC RELEASE