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:
Feb. 16, 2021
Filed:
Mar. 09, 2016
Mitsubishi Electric Corporation, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A synthetic aperture radar signal processing device according to the present invention includes, a low-accuracy interpolation processing unit to perform interpolation processing on discrete data obtained from signals received by a synthetic aperture radar, a high-accuracy interpolation processing unit to perform interpolation processing on the discrete data with higher accuracy than the low-accuracy interpolation processing unit, a curvature determination unit to select either the high-accuracy interpolation processing unit or the low-accuracy interpolation processing unit in accordance with a first curvature that is a curvature of the discrete data at a target area for the interpolation processing, and an image reproduction processing unit to reproduce an image by use of a result of the interpolation processing selected by the curvature determination unit, wherein the curvature determination unit selects a point A, a point B, and a point C of discrete data adjacently arranged in a predetermined direction near the target area, and determines the first curvature based on a distance Δfbetween a point externally dividing a line segment connecting the point A and the point B at (AB+BC):BC and the point C (where AB is a distance between the point A and the point B, and BC is a distance between the point B and the point C). Therefore, the amount of computation in calculating curvature from discrete data can be suppressed.