Fred M Simonaire

US Patent:

41268628, Nov 21, 1978

Filed:

Apr 23, 1968

Appl. No.:

4/725583

Inventors:

Fred M. Simonaire - Baltimore MD

Assignee:

The United States of America as represented by the Secretary of the Air
Force - Washington DC

International Classification:

G01S 738

US Classification:

343 18E

Abstract:

A countermeasure for LORO (lobe-on-receive-only) tracking radars comprising a transmitter and a receiver which controls the transmitter. The transmitter radiates pulses on the radar's frequency at a repetition rate that repeatedly sweeps over a range selected to include the unknown lobing frequency of the radar, the sweeps being alternately slow and fast. The receiver circuit receives the tracking radar signal and operates upon a fall in its intensity to halt the pulse frequency sweep and cause it to reverse at a slow rate.