Assessment of the Impact of Gradiometer Techniques on the Performance of Inertial Navigation Systems.
Final rept. 1 Feb-31 Jul 71,
MASSACHUSETTS INST OF TECH CAMBRIDGE MEASUREMENT SYSTEMS LAB
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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 inertialgradiometer system is simulated in which the deflections of the vertical are computed and used for compensation of the inertial system. Author
- Navigation and Guidance