Accession Number : ADD006244

Title :   Pulse Doppler Ranging System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Witte,Joseph J ; Femenias,Raymond H

Report Date : 21 Nov 1978

Pagination or Media Count : 4

Abstract : A pulse radar distance measuring system in which the transmitter oscillator is injection-locked to a reference oscillator through a directional coupler. The pulses from the reference oscillator are of a duration which is approximately equal to the time required for the transmitted signal to travel to a target and return. The output of the transmitter oscillator is coupled to the transmitting antenna through the above mentioned directional coupler. The received target return signal is compared with the signal from the reference oscillator in a balanced mixer. The output of the mixer is coupled to a range-gated receiver and then to decision circuits for utilization. (Author)

Descriptors :   *Patents, *Doppler radar, Radar pulses, Range gating

Subject Categories : Cybernetics
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE