Results 11 to 20 of about 159,428 (230)

A Bistatic Analytical Approximation Model for Doppler Rate Estimation Error from Real-Time Spaceborne SAR Onboard Orbit Determination Data

open access: yesRemote Sensing, 2020
Real-time spaceborne bistatic SAR imaging could significantly reduce the whole processing time and can enhance the spaceborne SAR mission availability.
Xiaoyu Yan   +3 more
doaj   +1 more source

Spaceborne Bistatic SAR Scene Simulation [PDF]

open access: yesIGARSS 2018 - 2018 IEEE International Geoscience and Remote Sensing Symposium, 2018
Augmenting traditional spaceborne SAR sensors with additional receive-only satellites in close formation enhances the observation space, allowing for single-pass interferomtry in along-and/or across-track with flexible baselines and the potential to build tomographic stacks with reduced temporal decorrelation properties. The feasibility of such add-ons
Scheiber, Rolf   +3 more
openaire   +2 more sources

Estimating the Observation Area of a Stripmap SAR via an ISAR Image Sequence

open access: yesRemote Sensing, 2023
The stripmap mode is a basic and important mode for spaceborne synthetic aperture radars (SARs). Estimating the time-varying area observed by spaceborne SARs operating in stripmap mode is a practical but challenging field of research. In this article, we
Bo Li   +7 more
doaj   +1 more source

Spaceborne Compact Polarimetric Synthetic Aperture Radar for Ship Detection

open access: yesLeida xuebao, 2016
Spaceborne Compact Polarimetric Synthetic Aperture Radar (CP SAR) is a new form of SAR, which has intrinsic advantages in maritime surveillance because it can obtain relatively rich polarimetric information of targets with wide swath.
Ji Kefeng   +4 more
doaj   +1 more source

Review of Novel Azimuthal Multi-angle Observation Spaceborne SAR Technique

open access: yesLeida xuebao, 2020
This paper reviews the novel azimuthal multi-angle spaceborne Synthetic Aperture Radar (SAR) technique. First, the development status and trend of SAR satellites are analyzed, and their observation capacities are compared considering different aspects ...
CHEN Jie   +5 more
doaj   +1 more source

Current Situation and Development Trend of Inflight Antenna Pattern Measurement Techniques of Spaceborne SAR

open access: yesLeida xuebao, 2012
The antenna pattern uncertainty is the main error of SAR system. The technique for inflight antenna pattern measurement of spaceborne SAR is one of the most important technique of SAR calibration.
Hong Jun, Ming Feng, Hu Ji-wei
doaj   +1 more source

Numerical Study of the Spatiotemporally-Varying Background Ionospheric Effects on P-Band Satellite SAR Imaging

open access: yesIEEE Access, 2020
At the relatively low frequency of the P-band spaceborne SAR, the background ionosphere is no longer treated as time-invariant, together with the spatial variation in the background ionosphere, and complicates the spaceborne SAR imaging.
Zhen Xu, Kun-Shan Chen
doaj   +1 more source

A Meta-Analysis of Sea Ice Monitoring Using Spaceborne Polarimetric SAR: Advances in the Last Decade

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Sea ice profoundly influences ocean circulation, the polar environment, biology, climate, and commercial activities. The rapidly changing sea ice environment and increased human activities in polar regions drive the demand for sea ice monitoring ...
Hangyu Lyu   +2 more
doaj   +1 more source

An Imaging Method for Spaceborne Cooperative Multistatic SAR Formations With Nonzero Cross-Track Baselines

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022
Spaceborne multistatic synthetic aperture radar (M-SAR) formations can deploy multiple spatially separated receiving phase centers along the along-track (AT) direction to achieve high-resolution wide-swath.
Haoyu Lin   +4 more
doaj   +1 more source

Three-dimensional Imaging Algorithm for Multi-azimuth-angle Multi-baseline Spaceborne Synthetic Aperture Radar

open access: yesLeida xuebao, 2018
Traditional spaceborne Synthetic Aperture Radar (SAR) can acquire three-dimensional (3D) images by using multi-baseline SAR data, which solves the problem of layover in two-dimensional (2D) SAR image, however, there is still a problem of insufficient ...
Kuang Hui   +3 more
doaj   +1 more source

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