Method and system for scanning a radar search volume and correcting for 3D orientation of covariance ellipsoid
AssigneeLockheed Martin Corporation
InventorMark A. Friesel
Life of this patent
Estimating the term…
Abstract
A method and radar system for estimating a radar search volume, includes acquiring covariance information relating to a cued direction, the covariance information having an ellipsoidal shape, projecting the ellipsoidal shape covariance information onto a range-traverse plane and onto the range-elevation plane to produce a covariance ellipse on the range-traverse and range-elevation planes; and determining the maximum extents in each of the range-transverse and range-elevation planes wherein the azimuth and elevation extents define the search volume.
Claims20
A method for estimating a radar search volume, the method comprising:
- acquiring covariance information relating to a cued direction, the covariance information having an ellipsoidal shape;
- projecting the ellipsoidal shape covariance information onto a range-traverse plane and onto the range-elevation plane to produce a covariance ellipse on the range-traverse and range-elevation planes;
- and
- determining, using a computer processor, the maximum extents in each of the range-traverse and range-elevation planes, the azimuth and elevation extents defining the search volume.
A radar system for searching an angular region of a radar search volume, the radar system comprising:
- a radar beam generator for generating radar beams at a search face of the search volume;
- a source for providing covariance information relating to a cued direction, the covariance information having an ellipsoidal shape;
- and
- a processor coupled to the source and to the radar beam generator, the processor executing instructions for:
- projecting the ellipsoidal shape covariance information onto a range-traverse plane and onto the range-elevation plane to produce a covariance ellipse on the range-traverse and range-elevation planes;
- and
- determining the maximum extents in each of the range-traverse and range-elevation planes, the azimuth and elevation extents defining the search volume.
A non-transitory computer-readable storage medium for estimating a radar search volume, the computer-readable storage medium having processor-executable instructions stored, which instructions, when executed by a processor, cause the processor to:
- project ellipsoidal shaped covariance information relating to a cued direction onto a range-traverse plane and onto a range-elevation plane to produce a covariance ellipse on the range-traverse and range-elevation planes;
- and
- determine the maximum extents in each of the range-traverse and range-elevation planes, the azimuth and elevation extents defining the search volume.
Dependencies are inferred from the claim text.