Wireless Local Positioning with SILO-Based Backscatter Transponders for Autonomous Robot Navigation

Autor: Christian Carlowitz, Martin Schtz, Yassen Dobrev, Martin Vossiek
Rok vydání: 2018
Předmět:
Zdroj: 2018 IEEE MTT-S International Conference on Microwaves for Intelligent Mobility (ICMIM).
DOI: 10.1109/icmim.2018.8443524
Popis: In this paper, we present a concept for wireless local positioning with multiple backscatter transponders based on the switched-injection locked oscillator (SILO). It allows reliable localization and ego-motion estimation of autonomous robots in indoor and outdoor environments. We derive the range-doppler spectrum of the beat signal that is induced by a single transponder in a FMCW radar system. With multiple transponders, a localization network is created that allows multilateral and multiangulation based positioning. For an initial evaluation, we built a miniaturized transponder for the 24 GHz ISM band and proofed the concept with a straightforward measurement, including two transponders, a moving ground robot equipped with a FMCW radar system and a laser tracker reference.
Databáze: OpenAIRE