In mini‐unmanned aerial vehicle‐based high‐resolution bistatic synthetic aperture radar systems, the rotation of the unmanned aerial vehicle platforms will cause direct signal loss, resulting in the reduction of synchronization error compensation ...
Zhanze Wang+3 more
doaj +1 more source
Small-Satellite Synthetic Aperture Radar for Continuous Global Biospheric Monitoring: A Review
Space-based radar sensors have transformed Earth observation since their first use by Seasat in 1978. Radar instruments are less affected by daylight or weather conditions than optical counterparts, suitable for continually monitoring the global ...
S. W. Paek+3 more
semanticscholar +1 more source
Generic Atmospheric Correction Model for Interferometric Synthetic Aperture Radar Observations
For mapping Earth surface movements at larger scale and smaller amplitudes, many new synthetic aperture radar instruments (Sentinel‐1A/B, Gaofen‐3, ALOS‐2) have been developed and launched from 2014–2017, and this trend is set to continue with Sentinel ...
Chen Yu+3 more
semanticscholar +1 more source
Proposed satellite position determination systems and techniques for Geostationary Synthetic Aperture Radar [PDF]
This paper proposes two different calibration techniques for Geostationary Synthetic Aperture Radar (GEOSAR) missions requiring a high precision positioning, based on Active Radar Calibrators and Ground Based Interferometry.
Broquetas Ibars, Antoni+3 more
core +2 more sources
Ocean Wave Inversion Based on Hybrid Along- and Cross-Track Interferometry
The hybrid interferometric synthetic aperture radar system is a combination of an along-track configuration and cross-track configuration. Based on linear ocean wave theory, an ocean wave inversion algorithm for a hybrid interferometric synthetic ...
Daozhong Sun+7 more
doaj +1 more source
GEOREFERENCING ON SYNTHETIC APERTURE RADAR IMAGERY [PDF]
Due to the SAR1 geometry imaging, SAR images include geometric distortions that would be erroneous image information and the images should be geometrically calibrated.
M. Esmaeilzade, J. Amini, S. Zakeri
doaj +1 more source
Multiple feature-enhanced synthetic aperture radar imaging [PDF]
Non-quadratic regularization based image formation is a recently proposed framework for feature-enhanced radar imaging. Specific image formation techniques in this framework have so far focused on enhancing one type of feature, such as strong point ...
Cetin, Mujdat+3 more
core +1 more source
Inundation Extent Mapping by Synthetic Aperture Radar: A Review
Recent flood events have demonstrated a demand for satellite-based inundation mapping in near real-time (NRT). Simulating and forecasting flood extent is essential for risk mitigation. While numerical models are designed to provide such information, they
Xinyi Shen+4 more
semanticscholar +1 more source
Four-dimensional SAR Imaging Algorithm Based on Iterative Reconstruction of Magnitude and Phase
Observation data obtained from the Four-Dimensional (4D) Synthetic Aperture Radar (SAR) system is sparse and non-uniform in the baseline-time plane. Hence, the imaging results acquired by traditional Fourier-based methods are limited by high side lobes ...
Ren Xiaozhen, Yang Ruliang
doaj +1 more source
Bayesian off-line detection of multiple change-points corrupted by multiplicative noise : application to SAR image edge detection [PDF]
This paper addresses the problem of Bayesian off-line change-point detection in synthetic aperture radar images. The minimum mean square error and maximum a posteriori estimators of the changepoint positions are studied.
Andre-Obrecht+39 more
core +2 more sources