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
      Radio Communications

Distribution Statement : APPROVED FOR PUBLIC RELEASE