Invention Grant
- Patent Title: Methods and systems for local principal axis rotation angle transform
-
Application No.: US14682582Application Date: 2015-04-09
-
Publication No.: US09651661B2Publication Date: 2017-05-16
- Inventor: James Gonnella , Michael Robinson
- Applicant: SRC, Inc.
- Applicant Address: US NY North Syracuse
- Assignee: SRC, INC.
- Current Assignee: SRC, INC.
- Current Assignee Address: US NY North Syracuse
- Agency: Bond Schoeneck & King, PLLC
- Agent George McGuire; Blaine Bettinger
- Main IPC: G01S13/90
- IPC: G01S13/90 ; G01S7/41

Abstract:
A method for processing synthetic aperture radar (SAR) data. The method includes the step of receiving SAR data that has been collected to provide a representation of a target scene, and dividing the data into a plurality of sub-blocks each having a plurality of pixels, each of the plurality of pixels having a coordinate and an amplitude. A transformation performed on each of the sub-blocks includes the steps of: (i) computing a mean coordinate; (ii) subtracting the mean coordinate from the pixel's actual coordinate to arrive at a modified coordinate; (iii) multiplying the modified coordinate by the amplitude to arrive at an amplitude-modified coordinate; (iv) creating a covariance matrix using the amplitude-modified coordinates; (v) performing a singular value decomposition on the covariance matrix to arrive at a vector; and (vi) associating an angle with the calculated vector.
Public/Granted literature
- US20160041262A1 Methods and Systems for Local Principal Axis Rotation Angle Transform Public/Granted day:2016-02-11
Information query