Patent · US Active

Synthetic aperture radar data reduction for satellites

US11704823B2 · kind B2 · utility

0Cited by

2References

13Claims

0Family size

Assignee

Airbus Defence and Space GmbH · DE

Inventors

Christoph Schaefer · Friedrichshafen, DE
Jörg Hippler · Schweinhub, DE
Andrea Federico Loinger · Schweinhub, DE
Christoph Heer · Neubiberg, DE

Key dates

Filing date	May 18, 2021
Grant date	Jul 18, 2023
Priority date	—
Expiry date	Jan 5, 2042

Classification

Technology area (CPC G)Physics
CPC primaryG06T2207/20056
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A preprocessing technique for synthetic radar images. An embodiment of a method for preprocessing synthetic aperture radar images includes: receiving range-compressed radar data generated from raw radar image data on-board a satellite or an airborne vehicle; generating a preliminary SAR image by performing a pre-focusing on the range-compressed radar data; extracting image subsectors from the preliminary SAR image; transmitting the extracted image subsectors to an on-ground portion; reconstructing the range-compressed radar data pertaining to the extracted image subsectors; and making the range-compressed radar data pertaining to the extracted image subsectors available for a Nominal synthetic aperture radar processor, wherein the Nominal synthetic aperture radar processor is configured to generate a focused SAR image having a nominal value of image resolution that is higher than the resolution of the preliminary SAR image.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.