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US 5,294,935 AGranted
Remote radar phase calibrator
AssigneeThe United States of America as represented by the Secretary of the Army
InventorDonald G. Bauerle
Life of this patent
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Abstract
A remote radar phase calibrator that provides radar phase measurement and libration. A trihedral or dihedral reflector placed in the radars field of view provides an amplitude calibrated phase stable signal to the radar. Movement of the reflector head-on to the radar provides a phase angle measurement that varies as a function of the radars transmitted wavelength and the distance the reflector is moved.
Claims7
A remote radar phase calibrator system comprising:
- antenna means connected to a radar system under test for illuminating a reflector,
- computer means connected to said radar system for measuring and recording I and Q phase outputs of said radar system,
- translational means for moving said reflector a controlled distance with respect to said antenna,
- controller means connected to said translational means for operating said translational means,
- optical signal link means connected to said controller means and said computer means for controlling said translational means, wherein said I and Q phase outputs are recorded for various positions of said reflector with respect to said antenna means thereby calibrating said radar system under test.
2 more elements
Dependencies are inferred from the claim text.