Accession Number : AD0686650
Title : IONOSPHERE PROPAGATION DELAY MEASUREMENT TECHNIQUES USING DUAL PHASE COHERENT DOPPLER FREQUENCIES AND A THIN SHELL MODEL.
Descriptive Note : Interim rept.,
Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C
Personal Author(s) : Landia,G. Paul ; Breetz,Louis D.
Report Date : 08 APR 1969
Pagination or Media Count : 26
Abstract : A theoretical approach was made to developing a technique for approximating the time error of a signal from a satellite caused by free electrons reducing the electromagnetic propagation speed. The development involved the use of the Transit satellites' dual frequency transmissions at 400 and 150 MHz, the AN/SRN-9 receiver, and a knowledge of the orbital location of the satellite. The technique gives a reasonably close delay measurement for a given satellite at a given time under a given ionospheric condition. (Author)
Descriptors : (*NAVIGATION SATELLITES, RADIO SIGNALS), (*ELECTROMAGNETIC RADIATION, IONOSPHERIC PROPAGATION), ERRORS, TIME, THEORY, DOPPLER NAVIGATION, DOPPLER SYSTEMS, MEASUREMENT, NUMERICAL ANALYSIS
Subject Categories : Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE