Accession Number : AD0428743

Title :   A CRITICAL SURVEY OF IN-ORBIT GUIDANCE AND CONTROL PROBLEMS AND A FUNCTIONAL ANALYSIS OF A MASTER CONTROL CENTER,

Corporate Author : MITRE CORP BEDFORD MASS

Personal Author(s) : Maitra,K. K. ; Bakalyar,G. A.

Report Date : DEC 1963

Pagination or Media Count : 43

Abstract : Research is concerned with the in-orbit guidance and attitude control of space vehicles. The typical problems, namely orbital transfer, rendezvous, interception, orbit sustaining, attitude control and corrective guidance, are discussed in a qualitative fashion. The significance of mass and/or time-optimized guidance subject to important considerations, such as boundedness of thrust magnitude, attitude and phase constraints, is emphasized. Precise mathematical formulations within the frameworks of the variational calculus followed by a brief critical survey of the available optimization techniques relevant to the above problems are also contained herein. The state of the art and the available unclassified results are briefly reviewed. An analysis of the functional requirements of a control center relevant to in orbit guidance is included. (Author)

Descriptors :   (*SPACECRAFT, ATTITUDE CONTROL SYSTEMS), TRANSFER TRAJECTORIES, RENDEZVOUS TRAJECTORIES, CALCULUS OF VARIATIONS, THRUST, RENDEZVOUS GUIDANCE, ORBITS, GUIDANCE, GRAVITY

Distribution Statement : APPROVED FOR PUBLIC RELEASE