Current development status of the wide-swath and high-resolution optical imager onboard Advanced Optical Satellite (ALOS-3)

2018 ◽  
Author(s):  
Hidenori Watarai ◽  
Haruyoshi Katayama ◽  
Takeo Tadono ◽  
Tomoya Niwa ◽  
Masakazu Sagisaka
Keyword(s):  
High Resolution ◽  
Current Development ◽  
Development Status ◽  
Wide Swath

Efficiency and Robustness Improvement of Airborne SAR Motion Compensation With High Resolution and Wide Swath

2020 ◽  
pp. 1-5
Author(s):  
Jianlai Chen ◽  
Buge Liang ◽  
Junchao Zhang ◽  
De-Gui Yang ◽  
Yuhui Deng ◽  
...  
Keyword(s):  
High Resolution ◽  
Motion Compensation ◽  
Airborne Sar ◽  
Wide Swath

scholarly journals A Novel Orthogonal Waveform Separation Scheme for Airborne MIMO-SAR Systems

Sensors ◽  
2018 ◽  
Vol 18 (10) ◽  
pp. 3580 ◽  
Author(s):  
Jie Wang ◽  
Ke-Hong Zhu ◽  
Li-Na Wang ◽  
Xing-Dong Liang ◽  
Long-Yong Chen
Keyword(s):  
Remote Sensing ◽  
High Resolution ◽  
Synthetic Aperture Radar ◽  
3D Imaging ◽  
Synthetic Aperture ◽  
Separation Scheme ◽  
Sar Images ◽  
Wide Swath ◽  
Aperture Radar

In recent years, multi-input multi-output (MIMO) synthetic aperture radar (SAR) systems, which can promote the performance of 3D imaging, high-resolution wide-swath remote sensing, and multi-baseline interferometry, have received considerable attention. Several papers on MIMO-SAR have been published, but the research of such systems is seriously limited. This is mainly because the superposed echoes of the multiple transmitted orthogonal waveforms cannot be separated perfectly. The imperfect separation will introduce ambiguous energy and degrade SAR images dramatically. In this paper, a novel orthogonal waveform separation scheme based on echo-compression is proposed for airborne MIMO-SAR systems. Specifically, apart from the simultaneous transmissions, the transmitters are required to radiate several times alone in a synthetic aperture to sense their private inner-aperture channels. Since the channel responses at the neighboring azimuth positions are relevant, the energy of the solely radiated orthogonal waveforms in the superposed echoes will be concentrated. To this end, the echoes of the multiple transmitted orthogonal waveforms can be separated by cancelling the peaks. In addition, the cleaned echoes, along with original superposed one, can be used to reconstruct the unambiguous echoes. The proposed scheme is validated by simulations.

Industrial Applications of Sol-Gel Technology

2007 ◽  
Vol 124-126 ◽  
pp. 619-622
Author(s):  
Young Jun Hong ◽  
Gi Ra Yi
Keyword(s):  
Sol Gel ◽  
Surface Modifications ◽  
Industrial Applications ◽  
Current Development ◽  
Development Status ◽  
Functional Nanoparticles ◽  
Industrial Materials ◽  
Gel Processing

In present paper, various industrial applications of the sol-gel technology will be briefly introduced. In particular, the current development status and technological issues of sol gel derived functional nanoparticles in electronic and industrial materials will be reviewed. Productions and surface modifications of nanoparticles by sol-gel processing, their incorporations into nanocomposites and final applications are described.

scholarly journals A Modified SweepSAR Mode with Dual Channels for High Resolution and Wide Swath

2018 ◽  
Vol 18 (3) ◽  
pp. 199-205 ◽  
Author(s):  
Seong Sik Yoon ◽  
Jae Wook Lee ◽  
Taek-Kyung Lee ◽  
Sang-burm Ryu ◽  
Hyeon-Cheol Lee ◽  
...  
Keyword(s):  
High Resolution ◽  
Dual Channels ◽  
Wide Swath

scholarly journals Development Predicament and Countermeasures of Anti-tumor Bio-similar Industry in China

2021 ◽  
Vol 9 (4) ◽  
pp. 85
Author(s):  
Yingjie Xie
Keyword(s):  
Research And Development ◽  
Tumor Therapy ◽  
Current Development ◽  
Development Status ◽  
Important Position

<p><span lang="EN-US">Biosimilar has the advantages of precise efficacy, high safety and stable quality, and occupy an important position in the field of anti-tumor therapy. In order to reduce the expenditure of drugs, the research and development of biosimilar drugs has attracted much attention. Compared with European and American countries in the development of the anti-tumor biosimilar industry, there are still some shortcomings and parts that need improvement in China. According to the current development status of China, analyzed the reasons for the development dilemma of my country’s anti-tumor biosimilar industry, and put forward suggestions for the development of this industry.</span></p>

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