Results 81 to 90 of about 3,054,526 (166)

High Frame Rate ViSAR Based on OAM Beams: Imaging Model and Imaging Algorithm

Remote Sensing
High frame rate imaging of synthetic aperture radar (SAR), also known as video SAR (ViSAR), has attracted extensive research in recent years. When ViSAR system parameters are fixed, there is a technical trade-off between high frame rates and high ...
Xiaopeng Li, Liying Xu, Yongfei Mao, Weisong Li, Yinwei Li, Hongqiang Wang, Yiming Zhu   +6 more
doaj   +1 more source

Shadow Spatiotemporal Track-Before-Detect Approach for Distributed UAV-Borne Video SAR

Remote Sensing
Shadow detection has become a key technology for ground-based moving target indication in video synthetic aperture radar (SAR). However, single-platform video SAR faces the issue of moving-target shadows being occluded.
Liwu Wen, Ming Ke, Ming Jiang, Jinshan Ding, Xuejun Huang   +4 more
doaj   +1 more source

Surface displacements and source parameters of the 2003 Bam (Iran) earthquake from Envisat advanced synthetic aperture radar imagery [PDF]

The M w 6.6, 26 December 2003 Bam (Iran) earthquake was one of the first earthquakes for which Envisat advanced synthetic aperture radar (ASAR) data were available.
Fielding, E. J., Wright, T. J., Funning, G. J., Parsons, B., Jackson, J. A.   +4 more
core   +1 more source

DSENet: A Detail and Semantic Enhanced Network for Video SAR Moving Target Shadow Detection

Remote Sensing
In video synthetic aperture radar (Video SAR), target motion causes defocusing, making it impossible to determine the target’s real-time position using reflected echoes.
Xueqi Wu, Zhongzhen Sun, Han Wu, Kefeng Ji   +3 more
doaj   +1 more source

Surface ruptures and building damage of the 2003 Bam, Iran earthquake mapped by satellite synthetic apeerture radar interferometric correlation [PDF]

We use the interferometric correlation from Envisat synthetic aperture radar (SAR) images to map the details of the surface ruptures related to the 26 December 2003 earthquake that devastated Bam, Iran.
Fielding, E. J., Rosen, P. A., Nazari, H., Walker, R., Talebian, M., Ghorashi, M., Jackson, J. A.   +6 more
core   +1 more source

Advanced Digital Beamforming Concepts for High Performance Synthetic Aperture Radar (SAR) Imaging [PDF]

, 2009
This paper reviews advanced multi-channel SAR system concepts for the imaging of wide swaths with high resolution. Several novel system architectures employing both direct radiating arrays and reflector antennas fed by a digitial array are introduced ...
Patyuchenko, Anton, Huber, Sigurd, Bordoni, Federica, Moreira, Alberto, Younis, Marwan, Gebert, Nicolas, Krieger, Gerhard   +6 more
core  

High-Resolution Forward-Looking Imaging Method for FMCW Radar Based on Sparse Sampling. [PDF]

Sensors (Basel)
Zhao Q, Yan X, Zhang T, Hou Q, Liu Q, Wang J, Wang X.   +6 more
europepmc   +1 more source

Echo Model Analysis and Frequency-Domain Imaging Algorithm for Geosynchronous Spaceborne-Airborne FMCW Bistatic SAR with High-Maneuvering Receiver. [PDF]

J Imaging
Liu X, Ding L, Lu C, Yang W, Li P.
europepmc   +1 more source

PLIS: an airborne polarimetric L-band interferometric synthetic aperture radar

, 2011
PLIS is an airborne synthetic aperture radar designed to be used in conjunction with a passive radiometer to collect microwave data at L-band for the remote sensing of soil moisture.
Panciera, R., Bates, B., McGrath, A., Stacy, N., Yang, R., Gray, D., Yardley, H., Walker, J., Hacker, J.   +8 more
core  

Year-round movement of emperor penguin colonies observed from space. [PDF]

Commun Earth Environ
Macdonald GJ, Jamieson SSR, Stokes CR, Fretwell PT, LaRue M, Foster-Dyer RTN, Jenouvrier S.   +6 more
europepmc   +1 more source