Accession Number : ADD007894

Title :   Coded Pulse Radar Fuze.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Weiss,Frank

Report Date : 22 Jul 1980

Pagination or Media Count : 8

Abstract : A coded pulse radar proximity fuze with improved electronic countermeasure protection, comprising: (a) transmitting means for radiating a recurring sequence of three pulses of two alternate frequencies at a target, each of said pulses being separated in time by the desired radar round trip delay time and each of said sequences of pulses being separated in time by a greater time than the desired radar round trip delay time; (b) means for receiving reflections of said recurring sequence of three pulses radiated at a target by said transmitting means; (c) means connected to said receiving means and to said transmitting means for combining the output of said receiving means with a portion of the output of said transmitting means; (d) means connected to said combining means for amplifying that portion of the output of said combining means having a frequency equal to the difference between said two alternate frequencies; and (e) means connected to said means for amplifying for detecting a sequence of two pulses separated in time by the desired radar round trip delay time. (Author)

Descriptors :   *Patents, *Radar pulses, *Electronic countermeasures, *Radio proximity fuzes, Protection, Frequency, Coding, Pulses

Subject Categories : Countermeasures
      Active & Passive Radar Detection & Equipment
      Ammunition and Explosives

Distribution Statement : APPROVED FOR PUBLIC RELEASE