Verfahren zur Detektion und Höhen- und Azimut-Schätzung von Objekten in einer Szene durch Radarverarbeitung unter Verwendung einer Spärlichen Rekonstruktion mit Kohärenten und Inkohärenten Anordnungen

Details

Veröffentlichungs-Nr.

EP3588128

Aktenzeichen

EP18179827

Anmeldetag

26. Juni 2018

Veröffentlichung

10. August 2022

Erteilung

10. August 2022

Rechtsraum

EP

IPC

G01S13/931G01S7/41G01S13/90

Abstract

In a method for detection and height and azimuth estimation of objects in a scene by radar processing, radar signals are emitted to the scene and radar signals reflected from the scene are received using at least one multi-channel radar sensor, said radar sensor comprising a two-dimensional array of sensor elements with spatial diversity in horizontal and vertical axes. Measurement signals of the at least one radar sensor are processed to detect objects in the scene and a height and azimuth estimation of one or several detected objects is performed using compressed sensing. The compressed sensing is based on a combination of a near-field multipath observation model, which includes ground-reflected path contributions of the emitted and reflected radar signals for a flat surface, with possibly unknown reflection coefficient, for pairs of transmitting and receiving elements, and a group-sparse estimation model for measurement signals of mutually incoherent measurements taken at different distances from the detected object(s) or from mutually incoherent radar sensors or sensor elements.

Anmelder

Firma

Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.

Land

🇩🇪 Deutschland

Fachgebiete