Single Snapshot Array Interpolation for Angular Estimation in Automotive Radar Applications

verfasst von

Alisa Jauch, Frank Meinl, Holger Blume

Abstract

A lot of research efforts have been invested to im-prove angular estimation accuracy and resolution while keeping hardware efforts small. For this reason, techniques to virtually augment antenna apertures became popular. Among these are the employment of multiple-input and multiple-output (MIMO) methods or the utilization of second-order statistics in co-prime arrays. However since these virtually augmented arrays generally feature holes and thus missing spatial samples, they suffer from an increase of sidelobe levels and performance degradation. This imposes challenges to angular estimation procedures. To face those shortcomings, this paper presents a novel, fast and simple array interpolation technique to reconstruct a uniform linear array (ULA) measurement. The method is furthermore suitable for applications with severely limited snapshot count such as automotive imaging radars. Numerical experiments validate the superiority of the proposed method in terms of resolution ability, estimation accuracy and computation time compared to nuclear norm minimization (NNM) techniques.

Organisationseinheit(en)

Institut für Mikroelektronische Systeme

Externe Organisation(en)

Robert Bosch GmbH

Typ

Aufsatz in Konferenzband

Seiten

257-260

Anzahl der Seiten

4

Publikationsdatum

2024

Publikationsstatus

Veröffentlicht

Peer-reviewed

Ja

ASJC Scopus Sachgebiete

Computernetzwerke und -kommunikation, Elektronische, optische und magnetische Materialien, Instrumentierung

Elektronische Version(en)

https://doi.org/10.23919/gemic59120.2024.10485332 (Zugang: Geschlossen)