scholarly journals Coupling Scattering Characteristic Analysis of Dihedral Corner Reflectors in SAR Images

IEEE Access ◽  
2018 ◽  
Vol 6 ◽  
pp. 78918-78930 ◽  
Author(s):  
Zhiming Xu ◽  
Xiaofeng Ai ◽  
Qihua Wu ◽  
Feng Zhao ◽  
Shunping Xiao
Keyword(s):  
Characteristic Analysis ◽  
Sar Images ◽  
Scattering Characteristic

Scattering characteristic analysis of dual-band for new precipitation radar

2013 ◽  
Author(s):  
Xiaoyan Fan ◽  
Tao Han ◽  
Wenfeng Sun ◽  
Dong Li ◽  
She Shang ◽  
...  
Keyword(s):  
Dual Band ◽  
Characteristic Analysis ◽  
Precipitation Radar ◽  
Scattering Characteristic

scholarly journals Improved FBAM and GO/PO Method for EM Scattering Analyses of Ship Targets in a Marine Environment

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4735
Author(s):  
Jinxing Li ◽  
Min Zhang ◽  
Wangqiang Jiang ◽  
Pengbo Wei
Keyword(s):  
Multiple Scattering ◽  
Marine Environment ◽  
Good Accuracy ◽  
Physical Mechanism ◽  
Original Method ◽  
Sar Images ◽  
Em Scattering ◽  
Scattering Field ◽  
Composite Ship ◽  
Scattering Characteristic

The combination of the fact-based asymptotic method (FBAM) and the geometrical optics and physical optics (GO/PO) hybrid method is an effective way to analyze the electromagnetic (EM) scattering from electrically large ship targets in a marine environment because it takes the multiple scattering of the ship targets into consideration as well as the coupling scattering field between the targets and the sea surface. However, regarding an electrically large marine scene that contains a large target, the occlusion judgement process for calculating the multiple scattering field and the coupling field makes it inefficient. To solve this problem, this paper proposes a physical mechanism-based improved method to reduce the invalid occlusion judgment between different patches on the composite ship–ocean scene, and this operation enhances the computational efficiency significantly. With the proposed method, radar cross section (RCS) results of different targets and composite ship–ocean scenes were calculated and compared with the original FBAM and GO/PO method. Numerical results showed that the proposed method had higher efficiency compared with the original method with the same good accuracy. In addition, synthetic aperture radar (SAR) images of a composite ship–ocean scene with different radar parameters and sea conditions were simulated with the proposed method for detection purpose. Finally, the proposed method was used to analyze the EM scattering characteristic of a marine environment with multiple ships.

1842: Catheter Free Potassium-Titanyl-Phosphate (KTP) Laser Photoselective Vaporization Prostatectomy (PVP): Patient Characteristic Analysis

2007 ◽  
Vol 177 (4S) ◽  
pp. 612-612
Author(s):  
Motoo Araki ◽  
Po N. Lam ◽  
Daniel J. Culkin ◽  
Pamela E. Fox ◽  
Glenn M. Sulley ◽  
...  
Keyword(s):  
Potassium Titanyl Phosphate ◽  
Ktp Laser ◽  
Characteristic Analysis ◽  
Photoselective Vaporization

Characteristic Analysis of a Micro DC-DC Converter for Portable Electronic Devices and an Improvement of Transient Response Characteristic

2008 ◽  
Vol 128 (12) ◽  
pp. 1373-1380
Author(s):  
Satoshi Sugahara ◽  
Kouhei Yamada ◽  
Haruhiko Nishio ◽  
Masaharu Edo ◽  
Toshiro Sato ◽  
...  
Keyword(s):  
Transient Response ◽  
Electronic Devices ◽  
Response Characteristic ◽  
Characteristic Analysis
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