Accession Number : ADD020427


Title :   Supercavitating Projectile Tracking System and Method


Descriptive Note : Patent application, Filed 30 Dec 2009


Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON DC


Personal Author(s) : Varghese, Abraham N


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/d020427.pdf


Report Date : 30 Dec 2009


Pagination or Media Count : 35


Abstract : A system for three-dimensional tracking of high speed undersea projectiles may utilize a distributed field of randomly positioned passive acoustic sensors. The system measures variables related to the pressure field generated by a supercavitating projectile in flight wherein the amplitude of the pressure generated at a point in space is related to the projectile dimensions, velocity, and trajectory. The system iteratively processes data from the sensors to measure launch velocity, flight direction (trajectory), ballistic coefficient (drag), and/or maximum range.


Descriptors :   *UNDERWATER PROJECTILES , *METHODOLOGY , *CAVITATION , *TRACKING , VARIABLES , THREE DIMENSIONAL , FLIGHT , COEFFICIENTS , PRESSURE , DRAG , AMPLITUDE , TRAJECTORIES , ITERATIONS , ACOUSTIC DETECTORS , PASSIVE SYSTEMS , DISTRIBUTION , PATENT APPLICATIONS , VELOCITY , DATA PROCESSING


Subject Categories : Undersea and Antisubmarine Warfare
      Underwater and Marine Navigation and Guidance


Distribution Statement : APPROVED FOR PUBLIC RELEASE