Accession Number : ADD015676

Title :   Cross-Switched MICRAD Seeker.

Descriptive Note : Patent, Filed 27 Aug 84, patented 3 Nov 92,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s) : Alpers, Frederick C ; Hoover, Mervyn C

Report Date : 03 Nov 1992

Pagination or Media Count : 13

Abstract : A MICrowave RADiometric (MICRAD) guidance system is disclosed which utilizes an antenna having four beams, designated right, left, up and down. Information from the four beams is monitored essentially 100% of the time by passing through appropriate ferrite cross-switching means to four separate receivers. Information from two of the receivers passes through a first multiplexer and feedback gain balancer to provide a target azimuth output, and information from the remaining two receivers passes through a second multiplexer and feedback gain balancer to provide a target elevation output. A local oscillator heterodynes each of the four receivers in common, and a switch driver couples each of the multiplexers to the ferrite cross-switching means and gain balancers for appropriate selection.

Descriptors :   *MICROWAVES, *PATENTS, *TARGET DETECTION, *AIR TO SURFACE MISSILES, *GUIDED MISSILE TARGETS, ANTENNAS, AZIMUTH, FEEDBACK, FERRITES, GAIN, LOCAL OSCILLATORS, OSCILLATORS, RECEIVERS, SWITCHES, TARGETS, MULTIPLEXING, RADIO RECEIVERS, RADIOMETERS, TARGET ACQUISITION, NOISE

Subject Categories : Guided Missile Traj, Accuracy and Ballistics

Distribution Statement : APPROVED FOR PUBLIC RELEASE