Results 21 to 30 of about 1,143,358 (248)

Multidimensional Waveform Encoding for Synthetic Aperture Radar Remote Sensing [PDF]

, 2007
This paper introduces and analyses the innovative concept of multidimensional waveform encoding for spaceborne synthetic aperture radar (SAR). The combination of this technique with digital beamforming on receive enables a new class of highly ...
Moreira, Alberto, A. Moreira, G. Krieger, Gebert, Nicolas, Krieger, Gerhard, N. Gebert   +5 more
core   +1 more source

Hybrid Dual-Polarization Synthetic Aperture Radar

Remote Sensing, 2019
Compact polarimetry for a synthetic aperture radar (SAR) system is reviewed. Compact polarimetry (CP) is intended to provide useful polarimetric image classifications while avoiding the disadvantages of space-based quadrature-polarimetric (quad-pol) SARs.
R. Keith Raney
doaj   +1 more source

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

High Precision Antenna Characterisation for Broadband Synthetic Aperture Radar Processing [PDF]

, 2014
The airborne F-SAR sensor\cite{fsar}, developed and operated by the DLR-HR institute, acquires very high resolution, fully polarimetric synthetic aperture radar (SAR) data in multiple frequency bands in addition to providing a number of ...
Bernd Gabler, Gabler, Bernd, Jäger, Marc, Andreas Reigber, Reigber, Andreas, Marc Jager   +5 more
core   +1 more source

A New Classification Approach with Deep Mask R-CNN for Synthetic Aperture Radar Image Segmentation

Elektronika ir Elektrotechnika, 2020
In this paper, a hybrid classification approach which is combined with a more deep mask region-convolutional neural network and sparsity driven despeckling algorithm is proposed for synthetic aperture radar (SAR) image segmentation instead of the ...
Ridvan Yayla, Baha Sen
doaj   +1 more source

A Novel Attention Fully Convolutional Network Method for Synthetic Aperture Radar Image Segmentation

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
As an important step of synthetic aperture radar image interpretation, synthetic aperture radar image segmentation aims at segmenting an image into different regions in terms of homogeneity.
Zhenyu Yue, Fei Gao, Qingxu Xiong, Jun Wang, Amir Hussain, Huiyu Zhou   +5 more
doaj   +1 more source

Three-Dimensional Imaging of Circular Array Synthetic Aperture Sonar for Unmanned Surface Vehicle

Sensors, 2022
Synthetic aperture sonar (SAS) and interferometric synthetic aperture sonar (InSAS) have a range layover phenomenon during underwater observation, the AUV-mounted circular synthetic aperture sonar (CSAS) system, that insonifies targets using multiple ...
Sai Zeng, Wei Fan, Xuanmin Du
doaj   +1 more source

Experimental Performance Investigation of Digital Beamforming on Synthetic Aperture Radar [PDF]

, 2008
In this paper, we present the experimental results of a Digital Beam Forming (DBF) Synthetic Aperture Radar (SAR) performance on the purpose of the High- Resolution Wide-Swath (HRWS) SAR concept.
Junghyo Kim, Younis, Marwan, Wiesbeck, Werner, Werner Wiesbeck, Kim, Junghyo, Marwan Younis   +5 more
core   +1 more source

Autonomous Navigation Airborne Forward-Looking SAR High Precision Imaging with Combination of Pseudo-Polar Formatting and Overlapped Sub-Aperture Algorithm

Remote Sensing, 2013
Autonomous navigation airborne forward-looking synthetic aperture radar (SAR) observes the anterior inferior wide area with a short cross-track dimensional linear array as azimuth aperture.
Xueming Peng, Yanping Wang, Wen Hong, Weixian Tan, Yirong Wu   +4 more
doaj   +1 more source

Synthetic Aperture Scatter Imaging

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Diffraction limits the minimum resolvable feature on remotely observed targets to $\lambda R_{c}/A_{c}$, where $\lambda$ is the operating wavelength, $R_{c}$ is the range to the target and $A_{c}$ is the diameter of the observing aperture.
Qian Huang, Zhipeng Dong, Gregory Nero, Yuzuru Takashima, Timothy J. Schulz, David J. Brady   +5 more
doaj   +1 more source