Motion compensation/autofocus in airborne synthetic aperture radar: A review
Air-and spaceborne synthetic aperture radar (SAR) can provide a large number of high-
resolution images for microwave remote sensing applications, such as geoscience and …
resolution images for microwave remote sensing applications, such as geoscience and …
A processing framework for airborne microwave photonic SAR with resolution up to 0.03 m: Motion estimation and compensation
Airborne synthetic aperture radar (SAR) with an imaging resolution of up to 0.03 m is
developed. However, the imaging process suffers from motion errors with 2-D spatial-variant …
developed. However, the imaging process suffers from motion errors with 2-D spatial-variant …
Blind NCS-based autofocus for airborne wide-beam SAR imaging
The improvement in azimuth resolution and/or the increase in the instantaneous beam width
can result in a wide-beam autofocus problem in airborne synthetic aperture radar (SAR) …
can result in a wide-beam autofocus problem in airborne synthetic aperture radar (SAR) …
A novel CFFBP algorithm with noninterpolation image merging for bistatic forward-looking SAR focusing
Fast factorized back-projection (FFBP) has significant advantages for bistatic forward-
looking synthetic aperture radar (BFSAR) imaging with arbitrary geometry and complex …
looking synthetic aperture radar (BFSAR) imaging with arbitrary geometry and complex …
2-D frequency autofocus for squint spotlight SAR imaging with extended omega-K
In the existing time-domain autofocus algorithms, the azimuth deramping operation will
change the azimuth-independent phase into the azimuth-dependent phase, which may …
change the azimuth-independent phase into the azimuth-dependent phase, which may …
An extend Kaiser distribution optimization phase compensation algorithm for terahertz airborne SAR imaging
Y Li, J Liu, J Li, R Min, S Wei, H Xiao… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
A terahertz (THz) airborne synthetic aperture radar (SAR) with a carrier frequency of up to
220 GHz is developed. However, due to the short wavelength of THz, the motion …
220 GHz is developed. However, due to the short wavelength of THz, the motion …
Time-domain autofocus for ultrahigh resolution SAR based on azimuth scaling transformation
For ultrahigh resolution synthetic aperture radar (SAR), azimuth spectrum aliasing limits the
application of frequency-domain autofocus algorithms. Therefore, time-domain autofocus …
application of frequency-domain autofocus algorithms. Therefore, time-domain autofocus …
Efficient fast time-domain processing framework for airborne bistatic SAR continuous imaging integrated with data-driven motion compensation
Fast factorized back-projection (FFBP) is a classic fast time-domain algorithm (FTDA), which
is not limited by the assumption of azimuth-invariant of echo signal and is suitable for the …
is not limited by the assumption of azimuth-invariant of echo signal and is suitable for the …
Precise Motion Compensation Approach for High-Resolution Multirotor UAV SAR in the Presence of Multiple Errors
J Han, S Tang, Z Chen, Y Ren, Z Lian… - IEEE Journal of …, 2024 - ieeexplore.ieee.org
As an important supplement to traditional airborne synthetic aperture radar (SAR), multirotor
unmanned aerial vehicle (UAV) SAR has the advantages of low cost, high flexibility, and …
unmanned aerial vehicle (UAV) SAR has the advantages of low cost, high flexibility, and …
An improved spatially variant MOCO approach based on an MDA for high-Resolution UAV SAR imaging with large measurement errors
Y Ren, S Tang, Q Dong, G Sun, P Guo, C Jiang, J Han… - Remote Sensing, 2022 - mdpi.com
For unmanned aerial vehicle (UAV) synthetic aperture radar (SAR) imaging, motion errors
cannot be obtained accurately when high precision motion sensors are not equipped on the …
cannot be obtained accurately when high precision motion sensors are not equipped on the …