Accession Number : ADD003389

Title :   A Balanced Input Zero Differential Detector.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Hwang,Ying C

Report Date : 16 Dec 1976

Pagination or Media Count : 8

Abstract : The patent application describes a balanced input zero differential detector used for example, in radar, to determine the center of gravity of the video pulse of a return echo. A balanced tunnel diode is coupled across the input of a differential amplifier. The tunnel diode is positioned in relation to four input signals and ground such that it is biased at a stable low-current-high-voltage state. An incoming signal causes a series of state changes designed to fire the diode at zero crossing resulting in the occurrence of a step voltage which in turn causes the differential amplifier to change state.

Descriptors :   *Signal processing, *Patent applications, Video signals, Radar reflections, Detectors

Subject Categories : Electrical and Electronic Equipment
      Active & Passive Radar Detection & Equipment

Distribution Statement : APPROVED FOR PUBLIC RELEASE