An Improved Map-Drift Algorithm for Unmanned Aerial Vehicle SAR Imaging
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2020.3011973
Abstract: Unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) is usually sensitive to trajectory deviations that cause severe motion error in the recorded data. Because of the small size of the UAV, it is difficult to… read more here.
Keywords: algorithm; unmanned aerial; aerial vehicle; map drift ... See more keywords
Azimuth Variant Motion Error Compensation Algorithm for Airborne SAR Imaging Based on Doppler Adjustment
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Geoscience and Remote Sensing Letters"
DOI: 10.1109/lgrs.2021.3058698
Abstract: Conventional beam-center approximation-based motion compensation (MOCO) algorithms fail to achieve an optimally focused image in the case of the high-resolution and high-frequency (HRHF) synthetic aperture radar (SAR) system. In this letter, a novel MOCO algorithm… read more here.
Keywords: doppler; variant motion; motion error; azimuth variant ... See more keywords
A Novel Autofocus Framework for UAV SAR Imagery: Motion Error Extraction From Symmetric Triangular FMCW Differential Signal
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2021.3133331
Abstract: Synthetic aperture radar (SAR) installed on unmanned aerial vehicles (UAVs) has drawn increasing attention in the area of remote sensing due to its high spatial resolution and low energy consumption. However, due to the sensitivity… read more here.
Keywords: uav sar; motion; motion error; symmetric triangular ... See more keywords
A High-Frequency Motion Error Compensation Algorithm based on Multiple Errors Separation in BiSAR onboard Mini-UAVs
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"
DOI: 10.1109/tgrs.2022.3150081
Abstract: In this paper, a high-frequency motion error compensation algorithm for mini-Unmanned Aerial Vehicle (UAV) based Bistatic Synthetic Aperture Radar (BiSAR) system is proposed. Compared with traditional SAR system platform, the mini-UAV is more vulnerable to… read more here.
Keywords: motion error; frequency motion; motion; high frequency ... See more keywords
Crosstalk decoupling measurement method to determine the six degrees of freedom of motion error of linear stages.
Sign Up to like & getrecommendations! Published in 2022 at "Applied optics"
DOI: 10.1364/ao.448912
Abstract: The simultaneous measurement of all six degrees of freedom of motion error for a linear stage is significantly faster than methods that measure each degree of freedom separately. However, in current simultaneous measurement methods, error… read more here.
Keywords: measurement; degrees freedom; motion error; freedom motion ... See more keywords