Accession Number : AD0681769

Title :   AN OPTICAL INTERFEROMETER FOR DIRECTION MEASUREMENT,

Corporate Author : GENERAL DYNAMICS/ASTRONAUTICS SAN DIEGO CALIF

Personal Author(s) : Thiel,R. A.

Report Date : 08 MAY 1961

Pagination or Media Count : 23

Abstract : The basic principles of direction measurement using interferometric techniques, and the applications of these techniques to space velocity measurements are discussed. A type of interferometer capable of accomplishing such a measurement is proposed and a basic sensitivity is calculated and compared to the sensitivity obtainable with conventional telescope techniques. It is concluded that an interferometer can be built having a sensitivity of .01 sec of arc or better. However, except for very high sensitivities (>> .01 sec) there is little to recommend the interferometer over the telescope. (Author)

Descriptors :   (*SATELLITE TRACKING SYSTEMS, *INTERFEROMETERS), SENSITIVITY, TELESCOPES, VELOCITY

Subject Categories : Optical Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE