Journal ArticleDOI
A survey of ionospheric effects on space-based radar
Zheng-Wen Xu,Jian Wu,Zhensen Wu +2 more
TLDR
In this paper, a survey of the potential ionospheric effects on the performance of space-based radar systems (SBRs) operating in the ambient ionosphere environment is presented.Abstract:
In this survey, we fully review almost all potential ionospheric effects on the performance of space-based radar systems (SBRs), which operate in the ambient ionosphere environment; in particular, we review the use of space-based synthetic aperture radar systems (SARs) for imaging. There are two families of effects involved. One is the effects of the background ionosphere (non-turbulent ionosphere), such as dispersion, group delay, refraction, Faraday rotation, and phase shift. The other is the effects due to ionospheric irregularities, such as refractive index fluctuation, phase perturbation, angle-of-arrival fluctuation, pulse broadening, clutter, and amplitude scintillation. These effects adversely affect SAR imaging in several respects, such as by causing image shift in the range, and degradations of the range resolution, azimuthal resolution, and/or the resolution in height (elevation). We also review ionospheric irregularity characteristics and descriptions, propagation channel statistics, ...read more
Citations
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Journal ArticleDOI
A New Theoretical Approach of Wavelet-Based Multifractal Characterization of HF Channel Scattering Function: Theoretical and Physical Interpretations
TL;DR: A new wavelet-based multifractal dimension mapping approach for the identification and the quantification of the small-scale irregularities of the high-frequency ionospheric irregularities is introduced.
Development of a matlab based software package for ionosphere modeling
Canan Özgen,Güney Özcebe +1 more
TL;DR: This chapter presents a meta-anatomy of the determinants of infectious disease and some of the immune defences that protect against infection and promote wound healing.
Journal ArticleDOI
The Impact of Plate Motions on Long‐Wavelength InSAR‐Derived Velocity Fields
TL;DR: In this article , the impact of rigid motion by the Earth's tectonic plates on velocity fields derived from InSAR was demonstrated, showing that plate motion represents the dominant source of long-wavelength secular velocity gradients in multi-year time series for several study areas.
Journal ArticleDOI
Distortions Imposed by Ionospheric Faraday Rotation Dispersion in Low-Frequency Full-Polarimetric SAR Images
TL;DR: In this article , a theoretical model of the effect of ionospheric Faraday rotation (FR) dispersion on P-SAR images is proposed, and three components of the range compression response are derived with the main function accompanied by two accessories.
Journal ArticleDOI
Phase fluctuations model for EM wave propagation through solar scintillation at superior solar conjunction
Guanjun Xu,Zhaohui Song +1 more
TL;DR: In this paper, the impact of solar scintillation on phase fluctuations of electromagnetic (EM) wave propagation during the superior solar conjunction was considered. And the role of various features of the solar wind irregularities and their influence on the EM wave characteristic parameters was studied and discussed.
References
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Synthetic aperture radar interferometry
Paul A. Rosen,S. Hensley,Ian Joughin,F.K. Li,Soren N. Madsen,Ernesto Rodriguez,Richard M. Goldstein +6 more
TL;DR: In this paper, the authors present a review of the techniques of interferometry, systems and limitations, and applications in a rapidly growing area of science and engineering, including cartography, geodesy, land cover characterization, and natural hazards.
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