Accession Number : AD0734051

Title :   Assessment of the Impact of Gradiometer Techniques on the Performance of Inertial Navigation Systems.

Descriptive Note : Final rept. 1 Feb-31 Jul 71,

Corporate Author : MASSACHUSETTS INST OF TECH CAMBRIDGE MEASUREMENT SYSTEMS LAB

Personal Author(s) : Britting, Kenneth R. ; Madden, Stephen J., Jr. ; Hildebrant, Richard A.

Report Date : SEP 1971

Pagination or Media Count : 145

Abstract : A parametric study is performed to compare the geodetic induced errors in inertial navigation systems with the errors introduced by the 'major inertial instrument uncertainties. Three performance classes of inertial systems are studied - production, state-of-the-art, and future. It is found that the geodetic induced errors have a proportionally greater effect on the velocity performance than on the position performance. Even for the production systems, the geodetic errors are a large percentage of the total velocity error (about 50%). An inertial/gradiometer system is simulated in which the deflections of the vertical are computed and used for compensation of the inertial system. (Author)

Descriptors :   *INERTIAL NAVIGATION, RELIABILITY, ERRORS, NAVIGATION COMPUTERS, STABILIZED PLATFORMS, GRAVITY, ACCELERATION, RANDOM VARIABLES, CORRELATION TECHNIQUES, MATHEMATICAL MODELS, COMPUTER PROGRAMS.

Subject Categories : Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE