Secondary Radar Beacons for Local Ad-Hoc Autonomous Robot Localization Systems

Language
en
Document Type
Article
Issue Date
2020-01-14
First published
2019-12-12
Issue Year
2019
Authors
Schütz, Martin
Pavlenko, Tatiana
Vossiek, Martin
Editor
Publisher
MDPI
Abstract

In this paper, we present a detailed analysis and implementation of secondary radar beacons designed for a local ad-hoc localization and landing system (LAOLa) to support the navigation of autonomous ground and aerial vehicles. We discuss a switched linear feedback network as a virtually coherent oscillator and show how to use it as a secondary radar transponder. Further, we present a signal model for the beat signal of the transponder response in an FMCW radar system, which is more detailed than in previously published papers. An actual transponder realization in the 24 GHz ISM band is presented. Its RF performance was evaluated both in the laboratory and in the field. Finally, we put forward some ideas on how to overcome the range measurement inaccuracy inherent in this transponder concept.

Journal Title
Sensors
Volume
19
Issue
24
Citation
Sensors 19.24 (2019): 5484. <https://www.mdpi.com/1424-8220/19/24/5484>
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