Accession Number : ADD010507

Title :   Dual Field-of-View Optical Target Detector.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE ARMY WASHINGTON DC

Personal Author(s) : Mitchell,Robert R

Report Date : 01 Jul 1983

Pagination or Media Count : 24

Abstract : Dual field-of-view detection allows reflected energy from a target to be received in one detector and extraneous reflected energy adjacent to the target area to be simultaneously detected in a separate detector. Comparison of the desired signal with a threshold level and with the detected extraneous energy level allows superior false alarm rejection while improving sensitivity by allowing reduced threshold levels for the true target. This dual detection in a single receiver allows the receiver to have two separate but immediately adjacent fields-of-view which interact with a transmitted beam to form a pair of adjacent sensing zones. A vehicle such as a missile equipped with this detection system can pass in close proximity to a target and distinguish a true target passing through the established sensing zone from extraneous background signals. (Author)

Descriptors :   *Patent applications, *Guided missile fuzes, *Optical fuzes, Proximity fuzes, Optical detection, Surface targets, Receivers, Guided missile targets, Transmitters, False alarms, Noise

Subject Categories : Guided Missile Warheads and Fuzes
      Optical Detection and Detectors
      Optics

Distribution Statement : APPROVED FOR PUBLIC RELEASE