Accession Number : AD0693047

Title :   INSTALLATION AND EVALUATION OF LORAC PRECISE NAVIGATION SYSTEM.

Descriptive Note : Master's thesis,

Corporate Author : NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s) : Shrum, Richard Eugene

Report Date : DEC 1968

Pagination or Media Count : 105

Abstract : A navigation system was established on Monterey Bay using the LORAC principle of phase-comparison. It is intended primarily for use in ocean sciences research within a 25 mile radius of Moss Landing, California. The system offers the capability of repeating a previously held position within a few feet, and may be used as a general navigation aid in the area with accuracy on the order of 100 yards. The theory of operation and error-causing factors are discussed in detail. Transmitter and receiver installations are described. Chapter IV is intended to serve as a self-contained user's guide, with instructions on the operation of the receiver, suggested techniques for use, and a description of the performance to be expected. A computer program is included to provide grid charts with hyperbolic position lines plotted for any desired area or scale. Brief initial testing indicated a high degree of stability and repeatability, however further evaluation over a longer period is necessary. (Author)

Descriptors :   *POSITION FINDING), (*HYPERBOLIC NAVIGATION, BAYS, INSTALLATION, THESES, RADIO EQUIPMENT, OPERATION, THESES.

Subject Categories : Underwater and Marine Navigation and Guidance

Distribution Statement : APPROVED FOR PUBLIC RELEASE