Bestimmung eines Peils für eine Funkbake

Details

Veröffentlichungs-Nr.

EP4641244

Aktenzeichen

EP24315203

Anmeldetag

22. April 2024

Veröffentlichung

29. Oktober 2025

Rechtsraum

EP

IPC

G01S3/04G01S3/24G01S3/34

Abstract

An apparatus (1) for determining a bearing to a radio beacon (2) comprises an arrangement of radio antennas (3) comprising a non-directional antenna system (Σ) and one or more directional antenna systems. The non-directional antenna system (Σ) has a receiving pattern that is omni-directional in a first plane. Each directional antenna system has a respective receiving pattern that is directional in a respective direction in the first plane. The apparatus (1) receives, at the arrangement of radio antennas (3), a direct-sequence spread-spectrum radio signal, transmitted by a radio beacon (2). It generates, for each antenna system, a respective digital signal from an electrical signal output by the antenna system in response to the received radio signal. For each of the one or more directional antenna systems, it performs a coherent despreading operation by intercorrelating the digital signal from the directional antenna system with at least a portion of the digital signal from the non-directional antenna system to determine a correlation value for the directional antenna system. It processes the one or more determined correlation values to determine a bearing to the radio beacon (2) relative to the arrangement of radio antennas (3).

Anmelder

Firma

Rockwell Collins, Inc.

Land

🇺🇸 USA

Fachgebiete