Resolution analysis of a gradient-index rod imaging system

2004 ◽  
Author(s):  
Xi Chen ◽  
Nicholas George
Keyword(s):  
Imaging System ◽  
Gradient Index ◽  
Resolution Analysis

Resolution Analysis of Distributed Holographic Aperture Imaging System

2021 ◽  
Vol 58 (6) ◽  
pp. 0609001
Author(s):  
杨峰 Yang Feng ◽  
朱磊 Zhu Lei ◽  
李杨 Li Yang ◽  
郭友明 Guo Youming ◽  
张雨东 Zhang Yudong
Keyword(s):  
Imaging System ◽  
Resolution Analysis

Improvement of 2.52 THz Array Transmission Imaging System and Resolution Analysis

2011 ◽  
Vol 38 (1) ◽  
pp. 0111001
Author(s):  
姚睿 Yao Rui ◽  
丁胜晖 Ding Shenghui ◽  
李琦 Li Qi ◽  
王骐 Wang Qi
Keyword(s):  
Imaging System ◽  
Transmission Imaging ◽  
Resolution Analysis

Resolution analysis of premagnification digital holographic imaging system with spherical reference wave

2013 ◽  
Vol 25 (2) ◽  
pp. 345-349
Author(s):  
王华英 Wang Huaying ◽  
刘飞飞 Liu Feifei ◽  
成惠 Cheng Hui ◽  
廖薇 Liao Wei ◽  
赵宝群 Zhao Baoqun ◽  
...  
Keyword(s):  
Imaging System ◽  
Reference Wave ◽  
Holographic Imaging ◽  
Resolution Analysis

scholarly journals Small Multicopter-UAV-Based Radar Imaging: Performance Assessment for a Single Flight Track

2020 ◽  
Vol 12 (5) ◽  
pp. 774 ◽  
Author(s):  
Ilaria Catapano ◽  
Gianluca Gennarelli ◽  
Giovanni Ludeno ◽  
Carlo Noviello ◽  
Giuseppe Esposito ◽  
...  
Keyword(s):  
Data Processing ◽  
Imaging System ◽  
Scattering Problem ◽  
Inverse Scattering Problem ◽  
Radar Imaging ◽  
Processing Strategy ◽  
Differential Gps ◽  
Resolution Analysis ◽  
Aerial Vehicle ◽  
Imaging Performance

This paper deals with a feasibility study assessing the reconstruction capabilities of a small Multicopter-Unmanned Aerial Vehicle (M-UAV) based radar system, whose flight positions are determined by using the Carrier-Phase Differential GPS (CDGPS) technique. The paper describes the overall radar imaging system in terms of both hardware devices and data processing strategy for the case of a single flight track. The data processing is cast as the solution of an inverse scattering problem and is able to provide focused images of on surface targets. In particular, the reconstruction is approached through the adjoint of the functional operator linking the unknown contrast function to the scattered field data, which is computed by taking into account the actual flight positions provided by the CDGPS technique. For this inverse problem, we provide an analysis of the reconstruction capabilities by showing the effect of the radar parameters, the flight altitude and the spatial offset between target and flight path on the resolution limits. A measurement campaign is carried out to demonstrate the imaging capabilities in controlled conditions. Experimental results referred to two surveys performed on the same scene but at two different UAV altitudes verify the consistency of these results with the theoretical resolution analysis.

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