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Remote Sensing
Volume 12
Issue 20
10.3390/rs12203463
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Article

Small-UAV Radar Imaging System Performance with GPS and CDGPS Based Motion Compensation

by
Carlo Noviello
1,*,
Giuseppe Esposito
1,2,
Giancarmine Fasano
2,
Alfredo Renga
2,
Francesco Soldovieri
1 and
Ilaria Catapano
1
1
Institute for Electromagnetic Sensing of the Environment (IREA), National Research Council (CNR), 80124 Napoli, Italy
2
Department of Industrial Engineering (DII), University of Naples “Federico II”, via Claudio 21, 80124 Naples, Italy
*
Author to whom correspondence should be addressed.
Remote Sens. 2020, 12(20), 3463; https://doi.org/10.3390/rs12203463
Submission received: 16 July 2020 / Revised: 13 October 2020 / Accepted: 19 October 2020 / Published: 21 October 2020
(This article belongs to the Section Engineering Remote Sensing)
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Abstract

The present manuscript faces the problem of performing high-resolution Unmanned Aerial Vehicle (UAV) radar imaging in sounder modality, i.e., into the vertical plane defined by the along-tack and the nadir directions. Data are collected by means of a light and compact UAV radar prototype; flight trajectory information is provided by two positioning estimation techniques: standalone Global Positioning System (GPS) and Carrier based Differential Global Positioning System (CDGPS). The radar imaging is formulated as a linear inverse scattering problem and a motion compensation (MoCo) procedure, accounting for GPS or CDGPS positioning, is adopted. The implementation of the imaging scheme, which is based on the Truncated Singular Value Decomposition, is made efficient by the Shift and Zoom approach. Two independent flight tests involving different kind of targets are considered to test the imaging strategy. The results show that the CDGPS supports suitable imaging performance in all the considered test cases. On the other hand, satisfactory performance is also possible by using standalone GPS when the meter-level positioning error exhibits small variations during the radar integration time.
Keywords: radar imaging; unmanned aerial vehicle; inverse scattering; linear scattering models; global positioning systems; carrier based differential global positioning system; radar signal processing; motion compensation radar imaging; unmanned aerial vehicle; inverse scattering; linear scattering models; global positioning systems; carrier based differential global positioning system; radar signal processing; motion compensation
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MDPI and ACS Style

Noviello, C.; Esposito, G.; Fasano, G.; Renga, A.; Soldovieri, F.; Catapano, I. Small-UAV Radar Imaging System Performance with GPS and CDGPS Based Motion Compensation. Remote Sens. 2020, 12, 3463. https://doi.org/10.3390/rs12203463

AMA Style

Noviello C, Esposito G, Fasano G, Renga A, Soldovieri F, Catapano I. Small-UAV Radar Imaging System Performance with GPS and CDGPS Based Motion Compensation. Remote Sensing. 2020; 12(20):3463. https://doi.org/10.3390/rs12203463

Chicago/Turabian Style

Noviello, Carlo, Giuseppe Esposito, Giancarmine Fasano, Alfredo Renga, Francesco Soldovieri, and Ilaria Catapano. 2020. "Small-UAV Radar Imaging System Performance with GPS and CDGPS Based Motion Compensation" Remote Sensing 12, no. 20: 3463. https://doi.org/10.3390/rs12203463

APA Style

Noviello, C., Esposito, G., Fasano, G., Renga, A., Soldovieri, F., & Catapano, I. (2020). Small-UAV Radar Imaging System Performance with GPS and CDGPS Based Motion Compensation. Remote Sensing, 12(20), 3463. https://doi.org/10.3390/rs12203463

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