Image motion calculation and error distribution for aerial whisk-broom imaging
文献类型：期刊论文
| 作者 | L.-Z.Xu; Y.C.-X; L.Y; G.Z.-Y |
| 刊名 | Guangxue Jingmi Gongcheng/Optics and Precision Engineering
 |
| 出版日期 | 2019 |
| 卷号 | 27期号:10页码:2071-2079 |
| 关键词 | Monte Carlo methods,Antennas,Errors,Image quality,Intelligent systems,Mirrors,Modulation,Optical transfer function,Reflection,Remote sensing,Structural design |
| ISSN号 | 1004924X |
| DOI | 10.3788/OPE.20192710.2071 |
| 英文摘要 | Image motion in the exposure time is a critical factor that affects image quality in aerial whisk-broom imaging. To study the influence of error factors in swing imaging of a three-mirror reflector on image displacement, a calculation model of image motion was first established using homogeneous coordinate transformation. Common error terms such as the precision of the rotation axis of the sweeping mirror were then introduced to the model. On this basis, the effects of machining and assembling errors of the three-mirror reflector on the displacement of the image points were analyzed, and the sensitivities of errors to image motion were compared. Then, based on the Modulation Transfer Function (MTF) of the system, the error limits of image point displacement were set, and the allowable displacement of the image point with high image quality was determined. Finally, the error distribution of the three-mirror reflector was simulated using the Monte Carlo method. The simulation results show that the image displacement is 10-5 m magnitude and the MTF is 0.97, which meet the requirements of the target. These findings have significant reference value for the structural design and machining adjustment of swing cameras. 2019, Science Press. All right reserved. |
| URL标识 | 查看原文 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/62917]  |
| 专题 | 中国科学院长春光学精密机械与物理研究所 |
| 推荐引用方式 GB/T 7714 | L.-Z.Xu,Y.C.-X,L.Y,et al. Image motion calculation and error distribution for aerial whisk-broom imaging[J]. Guangxue Jingmi Gongcheng/Optics and Precision Engineering,2019,27(10):2071-2079. |
| APA | L.-Z.Xu,Y.C.-X,L.Y,&G.Z.-Y.(2019).Image motion calculation and error distribution for aerial whisk-broom imaging.Guangxue Jingmi Gongcheng/Optics and Precision Engineering,27(10),2071-2079. |
| MLA | L.-Z.Xu,et al."Image motion calculation and error distribution for aerial whisk-broom imaging".Guangxue Jingmi Gongcheng/Optics and Precision Engineering 27.10(2019):2071-2079. |
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