Accession Number : ADD008395
Title : Zero-Doppler Shift Positioning Technique.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC
Personal Author(s) : Hannigan, Joseph F
Report Date : 09 Dec 1980
Pagination or Media Count : 15
Abstract : This invention relates to a system for determining locations by detecting doppler shift in radio signals. If a projectile carries on board a means for continuously transmitting a fixed frequency signal this signal will be received by a ground station as a changing frequency as the relative velocity between the projectile and the round station changes.
Descriptors : *PATENTS, *POSITION FINDING, *DOPPLER SYSTEMS, *RADIO SIGNALS, DOPPLER EFFECT, GROUND LEVEL, FREQUENCY, SHIFTING, INVENTIONS, STATIONS, SIGNALS
Subject Categories : Navigation and Guidance
Distribution Statement : APPROVED FOR PUBLIC RELEASE