A Miniaturized Ultra-Wideband Radar for UAV Remote Sensing Applications

This letter presents a novel approach to build a compact lightweight unmanned aerial vehicle (UAV) radar for remote sensing applications. The proposed radar exploits the recent advancement of an automotive radar chip for broadband chirp generation and rapid data processing. To compensate for the pat...

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Bibliographic Details
Published in:IEEE microwave and wireless components letters 2022-03, Vol.32 (3), p.198-201
Main Authors: Abushakra, Feras, Jeong, Nathan, Elluru, Deepak N., Awasthi, Abhishek K., Kolpuke, Shriniwas, Luong, Tuan, Reyhanigalangashi, Omid, Taylor, Drew, Gogineni, S. Prasad
Format: Article
Language:English
Subjects:
Automotive radar
Autonomous aerial vehicles
Broadband
Chirp
Chirp signals
Data processing
Down-converters
Frequency ranges
Frequency-modulated continuous-wave (FMCW) radar
linear chirp
Millimeter waves
Radar
Radar antennas
Radar imaging
Radar remote sensing
Remote sensing
Soil moisture
Spaceborne radar
Ultrawideband radar
Unmanned aerial vehicles
unmanned aerial vehicles (UAVs)
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Summary:This letter presents a novel approach to build a compact lightweight unmanned aerial vehicle (UAV) radar for remote sensing applications. The proposed radar exploits the recent advancement of an automotive radar chip for broadband chirp generation and rapid data processing. To compensate for the path losses and improve penetration at the millimeter-wave (mm-wave) frequency range, up- and down-converters are developed to generate an ultra-wideband (UWB) (3.25-5.15 GHz) chirp signal. The total payload of the radar is 2.5 kg. The proposed radar is installed on an UAV and tested in the field at a 100-m altitude above the ground surface. The results show that the compact low-power UWB radar can be used to map vegetation and soil moisture with fine resolution.
ISSN:1531-1309
2771-957X
1558-1764
2771-9588
DOI:10.1109/LMWC.2021.3129153