Accession Number : ADD001133

Title :   Passive Ranging Interferometer System.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE NAVY WASHINGTON D C

Personal Author(s) : Arndt,Walter R

Report Date : 15 Oct 1974

Pagination or Media Count : 16

Abstract : The patented system has two triad antennas arranged orthogonally. Signals emitted a distance R from the antennas generate phase related signals in the triad antenna systems. The distance R of the emitter form the antenna is functionally related to the phase difference of the received signals. A D.C. analog voltage proportional to the phase difference is produced and the distance of the emitter from the antenna systems is measured with relation to this analog voltage. Hybrids and couplers connected to the antenna are switched by a logic system so that discontinuities in their phase shift/voltage transfer characteristics, produced by angular displacement of the source about the antenna center, are eliminated and a signal related only to the distance R is obtained.

Descriptors :   *Radio interferometers, *Patents, Range finding, Passive systems, Phase shift

Subject Categories : Test Facilities, Equipment and Methods

Distribution Statement : APPROVED FOR PUBLIC RELEASE