Accession Number:

AD0263768

Title:

A STUDY OF THE EFFECT OF ERRORS IN MEASUREMENT OF VELOCITY AND FLIGHT-PATH ANGLE ON THE GUIDANCE OF A SPACE VEHICLE APPROACHING THE EARTH

Descriptive Note:

Corporate Author:

NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON D C

Personal Author(s):

Report Date:

1961-10-01

Pagination or Media Count:

1.0

Abstract:

A study was made to determine the effect of errors in measuring velocity and flight-path angle, in applying the corrective thrust, and in the initial predicted perigee altitude upon the guidance of a space vehicle to a desired perigee altitude. Corrective impulses were applied only when the vehicles predicted perigee altitude was not within a deadband about the desired perigee altitude. The method of scheduling observation points along the trajectory was to make an observation and to apply a correction if needed each time the true anomaly increased a given amount. Author

Subject Categories:

Distribution Statement:

APPROVED FOR PUBLIC RELEASE