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.
Subject
General Earth and Planetary Sciences
Reference42 articles.
1. The Use of Unmanned Aerial Vehicles (UAVs) for Remote Sensing and Mapping;Everaerts;Int. Arch. Photogramm. Remote Sens. Spat. Inf. Sci.,2008
2. Introduction to Multicopter Design and Control;Quan,2017
3. Unmanned aerial systems for photogrammetry and remote sensing: A review
4. Unmanned Aerial Vehicle for Remote Sensing Applications—A Review
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