Direction-of-Arrival Ambiguities Mitigation in Multibeam Leaky-Wave Antennas - Equipe Electronique du GeePs Access content directly
Conference Papers Year : 2024

Direction-of-Arrival Ambiguities Mitigation in Multibeam Leaky-Wave Antennas

Abstract

The inherent frequency beam scanning behavior of leaky-wave antennas (LWA) enables estimating directions of arrival (DoA) with a reduced complexity with respect to antenna- array-based DoA estimation. It has been shown recently that making use of multiple fast Floquet harmonics in periodic LWA can drastically reduce the frequency bandwidth required to scan a large angular field of view. However, with this multibeam operation, the columns of the LWA response matrix are not linearly independent which gives rise to ambiguities, i.e., spurious peaks in the MUSIC pseudo spectrum, in the DoA estimation. Indeed, if the number of snapshots and/or SNR is not sufficiently high, DoA ambiguities arise which leads to false detection. To tackle this issue, this paper investigates an approach to make use of signals received by both ports of a 1-D LWA in order to effectively mitigate those ambiguities.
Embargoed file
Embargoed file
0 1 15
Year Month Jours
Avant la publication
Sunday, September 1, 2024
Embargoed file
Sunday, September 1, 2024
Please log in to request access to the document

Dates and versions

hal-04631732 , version 1 (02-07-2024)

Identifiers

Cite

Julien Sarrazin, Guido Valerio. Direction-of-Arrival Ambiguities Mitigation in Multibeam Leaky-Wave Antennas. 2024 18th European Conference on Antennas and Propagation (EuCAP), Mar 2024, Glasgow, United Kingdom. pp.1-5, ⟨10.23919/EuCAP60739.2024.10501279⟩. ⟨hal-04631732⟩
0 View
0 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More