Mikrowellenabbildung mit Radar mit Synthetischer Apertur mit mehreren Eingängen und mehreren Ausgängen unter Verwendung einer Komprimierten Mehrcoset-Bereichsmigrationstechnik

Details

Veröffentlichungs-Nr.

EP4617729

Aktenzeichen

EP25163128

Anmeldetag

12. März 2025

Veröffentlichung

17. September 2025

Rechtsraum

EP

IPC

G01S13/90

Abstract

There is a need to address the problem of compressed scanning in SAR acquisitions for microwave imaging. Embodiments of the present disclosure provide microwave imaging with multiple-input and multiple-output synthetic aperture radar using compressed multi-coset range migration technique. The present disclosure reduces the SAR acquisition time by compressed scanning, where a compressed scanning acquisition setup captures radar measurements to obtain a microwave image of a target scene by intermittently skipping blocks during SAR acquisition. Further, reconstruction of a microwave image of a target scene is performed using 2D Fourier Transform (FT) of the radar measurements based on a multi-coset range-migration framework. The multi-coset range migration framework makes use of intermittent scanning and formulates a compressed sensing-based architecture by leveraging block-sparsity constraints. Subsequently, a denoising convolutional neural network (DnCNN) is used to enhance and denoise the reconstructed microwave image to obtain a high-resolution image of the target scene.

Anmelder

Firma

Tata Consultancy Services Limited

Land

🇮🇳 Indien

Fachgebiete