Ionosphere correction algorithm for spaceborne SAR imaging

L Yang, M Xing, G Sun - Journal of Systems Engineering and …, 2016 - ieeexplore.ieee.org
For spaceborne synthetic aperture radar (SAR) imaging, the dispersive ionosphere has
significant effects on the propagation of the low frequency (especially P-band) radar signal …

Estimation and Compensation of the Ionosphere Effect in SAR Imaging

S Xingyi, C Lei, T Shangtan, C Quan… - 2023 4th China …, 2023 - ieeexplore.ieee.org
In the aspect of the transmitting error compensation in SAR imaging, the research of the
ionospheric effect on the radar echo is developed. As the random and dispersive nature of …

Effects of anisotropic ionospheric irregularities on space-borne SAR imaging

C Wang, M Zhang, ZW Xu, C Chen… - IEEE Transactions on …, 2014 - ieeexplore.ieee.org
This paper discusses the degradation of space-borne synthetic aperture radar (SAR)
imaging due to anisotropic ionospheric irregularities. In the case of the oblique incidence …

Study on ionospheric effects induced by spatio-temporal variability on medium-earth-orbit SAR imaging quality

L Li, J Hong, F Ming, JW Hu - 电子与信息学报, 2014 - jeit.ac.cn
Abstract The Medium-Earth-Orbit SAR (MEOSAR) is one of the potential next-generation
spaceborne SARs. Ionospheric effects analysis is one of the critical techniques for the …

Study about ionospheric effects on spaceborne SAR azimuth imaging

H Zheng, LL Li, F Li - 电子与信息学报, 2008 - jeit.ac.cn
In this paper, the effect of some factors such as the size of real antenna, different ionospheric
spectra and the size of ionospheric irregularities on the azimuth resolution of Synthetic …

Simulation of ionospheric effects on SAR imaging with noise at P-band

C Wang, M Zhang, ZW Xu, C Chen - ISAPE2012, 2012 - ieeexplore.ieee.org
In the past, most of the spaceborne synthetic aperture radars (SAR) operating at C-band or
higher frequencies, and the ionospheric effects are negligible in these bands. Recently, the …

Study about ionospheric effects on medium-earth-orbit SAR imaging

L Li, J Hong, F Ming - 2014 IEEE Radar Conference, 2014 - ieeexplore.ieee.org
The Medium-Earth-Orbit Synthetic Aperture Radar (MEOSAR) is one of the most potential
next-generation spaceborne SARs for its excellent performance. However, ionospheric …

Ionosphere estimation and correction for geosynchronous SAR based on point target deviation between range sub-images

H Lijia, D Chibiao, Q Xiaolan… - 2016 IEEE 13th …, 2016 - ieeexplore.ieee.org
Ionosphere is an important factor in high-resolution spaceborne synthetic aperture radar
(SAR) and geosynchronous (GEO) SAR. An approach based on point target deviation …

An approach for ionospheric effects correction on spaceborne SAR calibration based on active radar calibrator

L Li, J Hong, F Ming, WB Liang - 电子与信息学报, 2012 - jeit.ac.cn
For low frequency spaceborne Synthetic Aperture Radar (SAR) systems, the ionosphere will
have a significant effect on SAR calibration. In this paper, an approach for ionospheric …

Ground observation and correction of P-band radar imaging ionospheric effects

Z Ning, Z Fang, W Zhen, X Meng-dao, G Jia-long… - 雷达学报, 2014 - radars.ac.cn
For high resolution space-borne P-band SAR system, ionospheric effects could cause
serious phase errors. These errors are causally related to the radar frequency and the TEC …