Methods and apparatuses for reconstructing angle information
AssigneeBAE Systems Information and Electronic Systems Integration Inc.
InventorDavid Schorr
Life of this patent
Estimating the term…
Abstract
Methods and apparatuses for determining angular information from a target. A plurality of sensors on an image plane are used to obtain measured amplitude data. An azimuth and elevation may be estimated using this measured amplitude data. A residual error between the measured amplitude data and calibrated amplitude data may then be determined. The angular information corresponding to the azimuth and elevation at which the residual error is minimized may then be outputted as representing or corresponding to the angular information of the target.
Claims16
A method for determining angular information from a target, comprising:
- (a) obtaining measured amplitude data from a plurality of sensors;
- (b) estimating an azimuth and elevation using the measured amplitude data;
- (c) obtaining calibrated amplitude data corresponding to the azimuth and elevation;
- (d) determining a residual error between the measured amplitude data and the calibrated amplitude data;
- (e) repeating steps (b) through (d) until the residual error is minimized;
- and
- (f) outputting the angular information as corresponding to the azimuth and elevation at which the residual error was minimized.
A method for determining angular information from a target, comprising:
- (a) obtaining a plurality of sensors on an image plane;
- (b) defocusing the target or a point target on the image plane such that one or more of the sensors respond to a target pulse;
- (c) obtaining measured amplitude data from the plurality of sensors;
- (d) estimating an azimuth and elevation using the measured amplitude data;
- (e) obtaining calibrated amplitude data corresponding to the azimuth and elevation;
- (f) determining a residual error between the measured amplitude data and the calibrated amplitude data;
- (g) repeating steps (d) through (f) until the residual error is minimized;
- and
- (h) outputting the angular information as corresponding to the azimuth and elevation at which the residual error was minimized.
A system for determining angular information from a target, comprising:
- a plurality of sensors on an image plane;
- and
- a computer configured to:
- acquire measured amplitude data from the plurality of sensors;
- estimate an azimuth and elevation using the measured amplitude data;
- access calibrated amplitude data corresponding to the azimuth and elevation;
- determine a residual error between the measured amplitude data and the calibrated amplitude data;
- and
- output the angular information as corresponding to the azimuth and elevation at which the residual error is minimized.
Dependencies are inferred from the claim text.