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:

1974-05-28

Pagination or Media Count:

12.0

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 and Passive Radar Detection and Equipment

Distribution Statement:

APPROVED FOR PUBLIC RELEASE