The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 23, 1979
Filed:
Mar. 10, 1977
Applicant:
Inventors:
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01S / ;
U.S. Cl.
CPC ...
3431 / ;
Abstract
Angular ambiguity, particularly in measurements made in radio interferometers, is resolved by comparing an ambiguous value for a desired angle with an unambiguous value for an angle which is ideally equal to the desired angle but which may differ from it by an error angle less than .pi.. For example, ambiguity in the phase difference between a pair of widely-spaced antennas may be resolved by reference to the sum of two unambiguous phase differences between each of those antennas and an intermediate antenna. The effect on the ambiguity-resolution process of certain sources of phase errors in practical systems can be eliminated, leaving a large tolerance to remaining errors.