Accession Number : ADD005770

Title :   Countermeasure for Loro Radar.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Simonaire,Fred M

Report Date : 21 Nov 1978

Pagination or Media Count : 7

Abstract : Describes 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.

Descriptors :   *Patents, *Radar jamming, Amplitude modulation, Radar deception, Antenna lobes, Search radar, Radar tracking, Locking(Electronics), Sweepfrequency radar, Radar pulses, Electronic countermeasures, Sawtooth waveforms, Radar transmitters, Radar receivers, Radar signals, Sweep generators

Subject Categories : Radar Countermeasures

Distribution Statement : APPROVED FOR PUBLIC RELEASE