US 2025/0180694 A1 · METHOD AND COMPUTER SYSTEM ADAPTED FOR ENHANCING RESOLUTIONS OF SYNTHETIC APERTURE RADAR (SAR) COLLECTIONS

Abstract

In a method and computer system for enhancing resolutions of synthetic aperture radar (SAR) collections across a large search area, each collection may be represented by raw phase history data collected across a scene of the search area., the raw phase history embodied as a plurality of pulses representative of image data. The method includes ingesting a plurality of pulses in the raw phase history from the collection, the plurality of pulses including clean pulses and additional lower quality noisy pulses that have a determined potential value as to stationary or dynamic information on the ground. The method further includes enhancing resolution of the ingested clean and additional lower quality noisy pulses to generate enhanced pulses, and cleaning the enhanced pulses to create a two-dimensional scene of complex, grayscale or colorized pixels in either slant coordinates or ground plane coordinates.

Claims20

Dependent claims

A method executed by one or more computing devices in a satellite orbiting the earth for enhancing resolutions of synthetic aperture radar (SAR) collections across a large search area, each collection within the large search area represented by raw phase history data collected across a defined scene within the large search area, the raw phase history data embodied as a plurality of bursts, each burst containing multiple pulses representative of pixel image data, the method comprising:

ingesting a plurality of bursts in the raw phase history collected across each defined scene within the large search area, each ingested burst having a plurality of pulses including clean pulses and additional lower quality noisy pulses that have a determined potential value as to dynamic and stationary information on the ground method dynamic information on the ground,
enhancing resolution of the ingested bursts of clean and additional lower quality noisy pulses to generate enhanced bursts, and
cleaning the enhanced bursts to create a two-dimensional (2D) mosaic scene,
wherein the ingesting, enhancing, and cleaning steps are performed by computer software adapted to run on computer hardware of the one or more computing devices.

1 more element

A method for enhancing resolutions of synthetic aperture radar (SAR) collections across a large search area, each collection within the large search area represented by raw phase history data collected across a defined scene within the large search area, the raw phase history data embodied as a plurality of bursts, each burst containing multiple pulses of pixel image data, the method comprising:

ingesting a plurality of bursts in the raw phase history collected across each defined scene, each ingested burst having a plurality of pulses including clean pulses with no noise and additional lower quality noisy pulses having some noise but offering potential value as to stationary or dynamic information on the ground,
subjecting, to a windowing function, the ingested bursts of clean pulses, and the ingested additional lower quality pulses determined to contain useful data for enhancing image quality of a final imaging product to be realized, based on a search pattern of an antenna of the SAR, wherein the windowing function processes the ingested bursts on a pixel-by-pixel basis to generate enhanced bursts, and
cleaning the enhanced bursts to create the final imaging product for a consumer cleaning the enhanced bursts to create a final imaging product for a consumer with enhanced resolution.

A computer system adapted for enhancing resolutions of synthetic aperture radar (SAR) collections across a large search area, each collection within the large search area represented by raw phase history data collected across a defined scene within the large search area, the raw phase history data embodied as a plurality of bursts, each burst containing multiple pulses representative of pixel image data, the computer system comprising:

a processing hardware set, and
a computer-readable storage device medium, wherein the processing hardware set is structured, connected and/or programmed to run program instructions stored on the computer-readable storage medium instructions and associated data, the program instructions including:
an ingestion module programmed to ingest a plurality of bursts in the raw phase history collected across each defined scene within the large search area, each ingested burst having a plurality of pulses including high quality clean pulses and additional lower quality noisy pulses with noise but including data determined useful for enhancing image quality of a final imaging product to be realized,
an enhancement module programmed to enhance resolution of the ingested bursts of clean and additional lower quality noisy pulses to generate enhanced bursts,
a cleaning module programmed to clean the enhanced pulses to create a two-dimensional (2D) mosaic scene as the final imaging product for a consumer, and
a database for storing the created 2D mosaic scene.

3 more elements

Dependencies are inferred from the claim text.

Method and computer system adapted for enhancing resolutions of synthetic aperture radar (sar) collections

Life of this patent

Method and computer system adapted for enhancing resolutions of synthetic aperture radar (sar) collections

Life of this patent

Abstract

Claims20