Accession Number : AD0708479

Title :   ON THE OPTIMUM UTILIZATION OF INERTIAL COMPONENTS.

Descriptive Note : Doctoral thesis,

Corporate Author : CALIFORNIA UNIV LOS ANGELES SCHOOL OF ENGINEERING AND APPLIED SCIENCE

Personal Author(s) : Hoy,Eugene Chin

Report Date : APR 1970

Pagination or Media Count : 199

Abstract : A variety of problems dealing with the optimum utilization of inertial sensors is discussed. Inertial sensors, i.e., accelerometers and gyroscopes, play an important role in determining the overall performance of a system using inertial navigation. The performance of an inertial system is determined not only by the basic characteristics of the individual sensors, but also by the manner in which the sensors are employed. For example, the orientation of the sensors with respect to the trajectory, and the trajectory itself determine what effects the sensor errors will have on the system performance. Direct analytical solutions to the optimum orientation problems are desired to provide fresh insights into the situation and to supplement existing orientation guidelines. Methods of most effectively utilizing redundant data are desired. Both ballistic and cruise inertial systems are considered. To facilitate the obtaining of direct analytical solutions, accuracy criteria and error models are established that are not only significant but are conducive to obtaining analytical solutions as well. For optimum orientation problems, analytical expressions are first derived for the accuracy criteria in terms of the orientation parameters. Then, the orientation parameters that optimize these criteria are found. Similarly, the most mathematically tractable forms are selected for the examination of redundant sensors, and the study of the feasibility of trajectory shaping to minimize measurement errors. (Author)

Descriptors :   (*INERTIAL NAVIGATION, DETECTORS), ACCELEROMETERS, MATHEMATICAL MODELS, GYROSCOPES, OPTIMIZATION, GUIDED MISSILE TRAJECTORIES, INERTIAL GUIDANCE, TOLERANCES(MECHANICS), ACCEPTABILITY, THESES

Subject Categories : Operations Research

Distribution Statement : APPROVED FOR PUBLIC RELEASE