Bewältigen einer Mehrwegmehrdeutigkeit in einem Tdm-Mimo-Radar

Details

Veröffentlichungs-Nr.

EP4810984

Anmeldetag

17. März 2025

Veröffentlichung

23. September 2026

Rechtsraum

EP

Abstract

A TDM MIMO FMCW radar comprises at least one row of physical receivers with a first spacing in a first direction, and further comprises a plurality of physical transmitters arranged with a second spacing in said first direction. To determine whether a peak in an angle spectrum corresponds to a direct reflection or a first-order multipath artefact, a full-array angle spectrum (901) based on all elements of a virtual array signal, and a single-subarray angle spectrum (902) based on one subarray are computed. If a peak in the full-array angle spectrum and a corresponding baseline peak in the single-subarray angle spectrum are co-located, it is concluded that the peak represents a direct reflection in the scene. Otherwise, if the peak and the baseline peak are not co-located, it is concluded that the peak represents a first-order multipath artefact.

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Firma

Axis AB

Land

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