Interfering Noise Pulse Eliminator and Its Use in a Dicke Type Radiometer Circuit.
Patent, Filed 26 Apr 82, patented 26 Mar 85,
DEPARTMENT OF THE NAVY WASHINGTON DC
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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
- Active and Passive Radar Detection and Equipment
- Electromagnetic Pulses