Accession Number : AD0506288

Title :   At-Sea Alignment of an Aircraft Inertial Navigator.

Descriptive Note : Technical rept.,

Corporate Author : ANALYTIC SCIENCES CORP READING MASS

Personal Author(s) : Fagan,John H. ; Bradley,C. Lawrence

Report Date : 30 OCT 1969

Pagination or Media Count : 272

Abstract : An error analysis is made of four competing configurations for at-sea alignment of an inertial navigator - conventional gyrocompassing, transfer alignment, insertion and filter/data-link. These are treated from a uniform point of view, with a consistent set of assumptions and equations developed to provide the framework for system comparison. The filter/data-link scheme is then studied in more detail. Considerable attention is given to modeling the at-sea environment with brief consideration given to in-flight error propagation. (Author)

Descriptors :   (*INERTIAL NAVIGATION, ALIGNMENT), NOISE, MOTION, PORTABLE EQUIPMENT, NAVAL AIRCRAFT, ERRORS, GYRO COMPASSES, DATA TRANSMISSION SYSTEMS, ACCELEROMETERS, DETECTORS, PROPAGATION, DRIFT, CALIBRATION, AIRCRAFT CARRIERS

Subject Categories : Flight Control and Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE