Accession Number : ADD000214
Title : Means for Enhancing the Target Detection Capability of a Radar Receiver.
Descriptive Note : Patent,
Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C
Personal Author(s) : Thompson,Lowell V
Report Date : 12 Mar 1974
Pagination or Media Count : 5
Abstract : The patent describes a non-linear coupling circuit for incorporation into the I-F amplifier section of a radar receiver in order to improve the sub-clutter visibility thereof, such circuit acting in a discriminatory fashion to pass therethrough desired target signals while materially attenuating extended clutter and 'jamming' energy. The circuit includes a pair of crystal diodes to which is applied a bias voltage derived from this clutter or jamming energy, such bias acting to preclude passage through the diodes of a major portion of the undesired signal while the target indications undergo negligible attenuation. The visibility of the latter is thus greatly enhanced on the radar scope.
Descriptors : *Coupling circuits, *Radar receivers, *Patents, Target detection, Nonlinear systems
Subject Categories : Active & Passive Radar Detection & Equipment
Distribution Statement : APPROVED FOR PUBLIC RELEASE