Accession Number : ADD013139

Title :   Interfering Noise Pulse Eliminator and Its Use in a Dicke Type Radiometer Circuit.

Descriptive Note : Patent, Filed 26 Apr 82, patented 26 Mar 85,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Hoover,Mervyn C , Jr ; Heydlauff,Bruce M

Report Date : 26 Mar 1985

Pagination or Media Count : 9

Abstract : An apparatus and method removes interfering noise pulses from low-level radio-frequency signals through the application of a video-frequency circuit which causes detection of interfacing pulses above an automatically and dynamically established threshold voltage level. Upon detection of an interfering pulse a control signal activates a hold circuit causing the conventional radiometric circuit to be interrupted during the period of the occurrence of the interfering pulse, thereby blocking passage of the pulse, while simultaneously the voltage level of the video-frequency signal is held constant. (Patent)

Descriptors :   *PATENTS, *RADAR RECEIVERS, *ELECTROMAGNETIC PULSES, *RADIOMETERS, *ELECTROMAGNETIC INTERFERENCE, *SUPPRESSORS, NOISE(RADAR), COMPARATORS, INTERRUPTION, VIDEO SIGNALS, THRESHOLD EFFECTS, REMOVAL, RADAR TRANSMITTERS, INVENTIONS

Subject Categories : Active & Passive Radar Detection & Equipment
      Electromagnetic Pulses

Distribution Statement : APPROVED FOR PUBLIC RELEASE