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