Direction finding interferometer

Details Direction finding interferometer Direction finding interferometer

1982-11-05

1987-01-20

Jordan, Charles T.

Communications: directive radio wave systems and devices (e.g.,

Directive

Beacon or receiver

342424, G01S 504

Patent

active

046383204

ABSTRACT:
A two-dimensional, long baseline (D) direction finding interferometer (12) is provided for obtaining unambiguous spatial position of an object. The interferometer comprises four antenna receiving means, (A1, A2, A3, A4) which are arranged in a two-dimensional, planar fashion. Three of the antenna means (A1, A2, A3) are positioned on two orthogonal axes (D, D.sub.2). The remaining antenna (A4) means is positioned on a third axis (D.sup.1) which is arranged asymmetrically and nonorthogonally to the orthogonal axes, whereby the unambiguous spatial position of the object is determined.

REFERENCES:
patent: 2422026 (1947-06-01), Luck
patent: 2444320 (1948-06-01), Woodward, Jr.
patent: 3979754 (1976-09-01), Archer
patent: 4075635 (1978-02-01), Unz
patent: 4208733 (1980-06-01), Orievx
patent: 4213131 (1980-07-01), Kaiser, Jr.
patent: 4290127 (1981-09-01), Pridham et al.

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