Results 31 to 40 of about 730,674 (291)

UAV-Based Bistatic SAR-Imaging Using a Stationary Repeater

open access: yesIEEE Journal of Microwaves, 2023
Synthetic aperture radar (SAR) is an established technique for high-resolution radar imaging relying on the ego-motion of the radar. The long coherent integration time of the radar in conjunction with a linear or circular trajectory enables the ...
Alexander Grathwohl   +4 more
doaj   +1 more source

New imaging method for airborne circular trace stripmap SAR

open access: yesThe Journal of Engineering, 2019
Circular trace stripmap synthetic aperture radar (SAR) (CTS-SAR) is a new operation mode presented recently. Compared with linear trace stripmap SAR and staring SAR, it is similar to them. Meanwhile, it shows some unique features.
Yu Hui   +3 more
doaj   +1 more source

Ionospheric Sounding Based on Spaceborne PolSAR in P-Band

open access: yesAtmosphere, 2022
The signal of spaceborne low-frequency full-polarization synthetic aperture radar (full-pol SAR) contains abundant ionospheric information. Phased Array L-band Synthetic Aperture Radar (PALSAR) working in the L-band has been verified as an emerging ...
Wulong Guo   +8 more
doaj   +1 more source

Denoising of SAR images [PDF]

open access: yes, 2011
Matter of discussion in this Ph. D. thesis is SAR (Synthetic Aperture Radar) image denoising. Main elements of innovation are the introduction of SAR-BM3D, a denoising algorithm optimized for SAR data, and the introduction of a benchmark which enables ...
Poderico, Mariana
core   +1 more source

An image formation algorithm for missile-borne circular-scanning SAR [PDF]

open access: yesEURASIP Journal on Advances in Signal Processing, 2013
Circular-scanning SAR is an imaging mode with its antenna beam rotating continuously with respect to the vertical axis. An image formation algorithm for the missile-borne circular-scanning SAR is proposed in this article. Based on the principle of the polar format algorithm, the focus algorithm is generalized to form each subimage when the antenna beam
Yesheng Gao, Kaizhi Wang, Xingzhao Liu
openaire   +3 more sources

Ocean Surface Wind Speed Retrieval Using Simulated RADARSAT Constellation Mission Compact Polarimetry SAR Data

open access: yesRemote Sensing, 2019
We investigated the use of C-band RADARSAT Constellation Mission (RCM) synthetic aperture radar (SAR) for retrieval of ocean surface wind speeds by using four new channels (right circular transmit, vertical receive (RV); right circular transmit ...
He Fang   +7 more
doaj   +1 more source

Staggered-SAR for High-Resolution Wide-Swath Imaging [PDF]

open access: yes, 2012
Synthetic aperture radar (SAR) is a remote sensing technique, capable of providing high resolution images independent of weather conditions and sunlight illumination.
Villano, Michelangelo   +5 more
core   +1 more source

Spaceborne Bi- and Multistatic SAR: Potential and Challenges [PDF]

open access: yes, 2006
Bi- and multistatic synthetic aperture radar (SAR) operates with distinct transmit and receive antennas that are mounted on separate platforms. Such a spatial separation has several operational advantages, which will increase the capability, reliability ...
Moreira, Alberto, Krieger, Gerhard
core   +1 more source

Research Progress on Three-dimensional SAR Imaging Techniques

open access: yesLeida xuebao, 2018
Conventional Synthetic Aperture Radar (SAR) moves along a straight line and forms a linear synthetic apertures. It can only obtain the two-dimensional (2-D) image of illuminated scene that is the projection of the three-dimensional (3-D) real scene onto ...
Hong Wen   +4 more
doaj   +1 more source

A SAR conjugate mirror [PDF]

open access: yes, 2006
A radar transponder was constructed, which modifies the received signal such that its complex conjugate is returned to the radar, qualities of the conjugate mirror used in optics and acoustics.
Hounam, David
core   +1 more source

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