Results 21 to 30 of about 212,348 (364)

In-Orbit Operational Parameter Calculation and Performance Optimization in KOMPSAT-6 Synthetic Aperture Radar

Remote Sensing, 2021
A new method to design in-orbit synthetic aperture radar operational parameters has been implemented for the Korean Multi-purpose Satellite 6 mission. The implemented method optimizes the pulse repetition frequency when a satellite altitude changes from ...
Jin-Bong Sung, Sung-Yong Hong
doaj   +1 more source

TerraSAR-X Time Series Fill a Gap in Spaceborne Snowmelt Monitoring of Small Arctic Catchments—A Case Study on Qikiqtaruk (Herschel Island), Canada

Remote Sensing, 2018
The timing of snowmelt is an important turning point in the seasonal cycle of small Arctic catchments. The TerraSAR-X (TSX) satellite mission is a synthetic aperture radar system (SAR) with high potential to measure the high spatiotemporal variability of
Samuel Stettner, Hugues Lantuit, Birgit Heim, Jayson Eppler, Achim Roth, Annett Bartsch, Bernhard Rabus   +6 more
doaj   +1 more source

Imaging ionospheric inhomogeneities using spaceborne synthetic aperture radar [PDF]

, 2011
We present a technique and results of 2-D imaging of Faraday rotation and total electron content using spaceborne L band polarimetric synthetic aperture radar (PolSAR).
Chapman, B., Freeman, A., Li, Z., Pi, X., Rosen, P.   +4 more
core   +2 more sources

Rapid flood and damage mapping using synthetic aperture radar in response to Typhoon Hagibis, Japan

Scientific Data, 2020
During the aftermath of Typhoon Hagibis, we made flood and damage proxy maps, rapidly derived from synthetic aperture radar (SAR) data using change detection approaches.
Cheryl W. J. Tay, S. Yun, Shi Tong Chin, A. Bhardwaj, Jungkyo Jung, E. Hill   +5 more
semanticscholar   +1 more source

Bayesian off-line detection of multiple change-points corrupted by multiplicative noise : application to SAR image edge detection [PDF]

, 2003
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, Basseville, Bernardo, Bovik, Bretthorst, Carlin, Chib, Chib, Cinlar, Curlander, Delyon, Djuric, Fjφrtoft, Frost, Geman, Geyer, Gilks, Godsill, Green, Gustafsson, Kelly, Lavielle, Lavielle, McCulloch, McCulloch, Oliver, Phillips, Robert, Robert, Ruanaidh, Sadler, Stephens, Stephens, Swami, Tierney, Touzi, Van Trees, Vincent, Willsky, Winkler   +39 more
core   +2 more sources

Airborne Circularly Polarized Synthetic Aperture Radar

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In this article, airborne broadband (maximum 400 MHz bandwidth) C-band circularly polarized synthetic aperture radar (SAR) is proposed and developed for further study on airborne compact polarized synthetic aperture radar (CP SAR) system using circular ...
Josaphat Tetuko Sri Sumantyo, Ming Yam Chua, Cahya Edi Santosa, Good Fried Panggabean, Tomoro Watanabe, Bambang Setiadi, Fransiskus Dwikoco Sri Sumantyo, Kengo Tsushima, Karna Sasmita, Agus Mardiyanto, Edy Supartono, Eko Tjipto Rahardjo, Gunawan Wibisono, Muh Aris Marfai, Retnadi Heru Jatmiko, h Sudaryatno, Taufik Hery Purwanto, Barandi Sapta Widartono, Muhammad Kamal, Daniele Perissin, Steven Gao, Koichi Ito   +21 more
doaj   +1 more source

Efficient CNN-based Super Resolution Algorithms for mmWave Mobile Radar Imaging [PDF]

, 2023
In this paper, we introduce an innovative super resolution approach to emerging modes of near-field synthetic aperture radar (SAR) imaging. Recent research extends convolutional neural network (CNN) architectures from the optical to the electromagnetic domain to achieve super resolution on images generated from radar signaling. Specifically, near-field
arxiv   +1 more source

Synchronization for mini‐UAV‐based high‐resolution BiSAR systems: Lost direct signal estimation based on Hampel filtering

Electronics Letters, 2022
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, Feifeng Liu, Shuyao Zhang, Zhixiang Xu   +3 more
doaj   +1 more source

Small-Satellite Synthetic Aperture Radar for Continuous Global Biospheric Monitoring: A Review

Remote Sensing, 2020
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, Sivagaminathan Balasubramanian, Sangtae Kim, O. Weck   +3 more
semanticscholar   +1 more source

Generic Atmospheric Correction Model for Interferometric Synthetic Aperture Radar Observations

Journal of Geophysical Research: Solid Earth, 2018
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, Zhenhong Li, N. Penna, P. Crippa   +3 more
semanticscholar   +1 more source