Accession Number : ADD000597
Title : Doppler Correction Circuit.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Dragonetti,Philip G
Report Date : 04 Feb 1975
Pagination or Media Count : 5
Abstract : The patent describes a circuit for precompensating a transmitted signal for the Doppler shift that will occur during its propagation time. The circuit takes a signal containing positive Doppler information and mixes it in a mixer, which is a component of a phase-lock loop, with a signal containing negative Doppler information which is the reverse of the positive information, leaving a signal which has practically no Doppler content.
Descriptors : *Doppler effect, *Patents, Corrections, Circuits, Radio signals, Satellite communications, Phase locked systems
Subject Categories : Radiofrequency Wave Propagation
Distribution Statement : APPROVED FOR PUBLIC RELEASE