Accession Number : AD0324880

Title :   The Loreli Technique,

Corporate Author : NAVAL RESEARCH LAB WASHINGTON D C

Personal Author(s) : MATHES,R.H. ; RICALZONE,L.C.

Report Date : JUL 1961

Pagination or Media Count : 13

Abstract : A summary is presented of work done on the Loreli technique. This technique was developed to produce highly accurate, acoustic-attack information from long-range sonars. The philosophy of Loreli is to establish an attack reference point near the target by means of an acoustic transponder, or Posit buoy, thus eliminating most of the errors which are inherent in equipment or are caused by the peculiar acoustic properties of the water medium. All data collected to date on antisubmarine attacks, both live and simulated, are presented. It now appears possible to approach a total attack error of as little as 200 yards at 20,000 yards, or 10 mils, with very simple equipment. Applications and continuing NRL work are discussed. (Author)

Descriptors :   *ANTISUBMARINE FIRE CONTROL SYSTEMS, *ANTISUBMARINE WARFARE, *POSITION FINDING, *SONAR EQUIPMENT, *TRANSDUCERS, ANTISUBMARINE AMMUNITION, DESTROYERS, DISPLAY SYSTEMS, ERRORS, FIRING ERROR INDICATORS, HELICOPTERS, REDUCTION, SONAR, SONAR PULSES, SONAR TARGETS, TORPEDOES

Subject Categories : Undersea and Antisubmarine Warfare
      Acoustic Detection and Detectors

Distribution Statement : APPROVED FOR PUBLIC RELEASE