Accession Number : ADD002123

Title :   High Resolution Range Tracking Circuit.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Alpers,Frederick C

Report Date : 28 May 1974

Pagination or Media Count : 12

Abstract : The patent describes a circuit to provide an automatic range tracking function in very high resolution (short pulse radar or missile seeker). A tracking gate is generated by feeding the output of the oscillator for the transmitter trigger generator through a continuous phase shifter and binary counter to generate a gating pulse. An early-late tracking discriminator updates a velocity memory circuit that feeds a variable speed drive motor to drive the continuous phase shifter which completes a closed tracking loop. The tracking discriminator can be of an adaptive type that tracks a particular desired point on a compound target.

Descriptors :   *Range gating, *Patents, Radar tracking, High resolution, Automatic, Circuits, Guided missile countermeasures, Guidance

Subject Categories : Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE