Patent ID: 6377214
Filing Date: 2002-04-23
Classification: G01S

Abstract:
A linear interferometer for intercepting and determining the angle of arrival &thgr; of intercepted pulses comprising:a reference antenna; a plurality of N antennas, colinearly aligned with said reference antenna forming a one dimensional interferometer, the spacing of said antennas relative to the reference antenna selected to be the product of a reference length &xgr; and a baseline di, where {di, i=1 to Nâˆ’1} are prime numbers and di, dN are prime for i in the range 1&lE;imeans for computing the angle of arrival of intercepted pulses at said antennas, wherein said angle of arrival &thgr; is determined as a function of the difference between the measured phase of said reference antenna and said plurality of N antennas in the array, wherein phase differences >2&pgr; are defined as phase rollovers, said angle of arrival being determined as a function of the number of phase rollovers.