Experimental Exploration of OTFS-Based 28 GHz UWB Pulsed Doppler Radar
2024 IEEE Workshop on Microwave Theory and Technology in Wireless Communications (MTTW 2024): Proceedings 2024
Nikolajs Tihomorskis, Sandis Migla, Kristaps Rubuls, Jurijs Sadovskis, Artūrs Āboltiņš

Orthogonal time frequency space (OTFS) is a novel modulation system for wireless communication in which data symbols are allocated in delay-Doppler (DD) domain. OTFS is proposed for use in next-generation communication systems and one of its uses is also in radar technologies. In this paper, a preliminary setup of an OTFS-based ultra-wideband (UWB) pulse Doppler radar is presented with results obtained from the experiments. Implemented radar’s prototype transmits OTFS modulated pilot with the use of arbitrary waveform generator (AWG) and up-conversion to the 28 GHz carrier frequency. In the experiments, a static object at different distances from the radar system is detected with three delay resolutions. Results are represented in DD domain and are consistent with distances to the object. Radar’s measurements also show the connection between DD domain and range-velocity matrix, through simple conversions of axes.


Keywords
Ultra wideband radar, radio frequency, Doppler effect, drones
DOI
10.1109/MTTW64344.2024.10742173
Hyperlink
https://ieeexplore.ieee.org/document/10742173

Tihomorskis, N., Migla, S., Rubuls, K., Sadovskis, J., Āboltiņš, A. Experimental Exploration of OTFS-Based 28 GHz UWB Pulsed Doppler Radar. In: 2024 IEEE Workshop on Microwave Theory and Technology in Wireless Communications (MTTW 2024): Proceedings, Latvia, Rīga, 2-4 October, 2024. Piscataway: IEEE, 2024, pp.1-5. ISBN 979-8-3315-3318-2. e-ISBN 979-8-3315-3317-5. Available from: doi:10.1109/MTTW64344.2024.10742173

Publication language
English (en)
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