Analysis and Reduction of Solar Stray Light in the Nighttime Imaging Camera of Luojia-1 Satellite
文献类型：期刊论文
| 作者 | X.Zhong; Z.Q.Su; G.Zhang; Z.G.Chen; Y.Meng; D.R.Li; Y.Liu |
| 刊名 | Sensors
 |
| 出版日期 | 2019 |
| 卷号 | 19期号:5页码:14 |
| 关键词 | Luojia-1 satellite,nighttime imaging camera,stray light,city lights,images,Chemistry,Engineering,Instruments & Instrumentation |
| ISSN号 | 1424-8220 |
| DOI | 10.3390/s19051130 |
| 英文摘要 | As one of the experimental payloads on Luojia-1 satellite, the nighttime imaging camera works with a high sensitivity to acquire nighttime light on earth. Solar stray light is a fatal problem for optical satellite works in the polar orbit, even for nighttime scene imaging, resulting in image saturation and light signal detection failure. To solve this problem, an analysis of the range of solar incident angles was conducted firstly. Based on the result, a special-shaped baffle was designed to avoid direct sunlight incidence. Moreover, the capability of stray light elimination of the lens was enhanced by an order of magnitude via optimizing the internal structure. An evaluation of secondary scattering stray lights into the camera from surrounding parts was performed based on a real satellite model. The results showed that the stray light elimination reaches a 10(-10) order, meeting design requirements. Utilizing on-orbit images, the ability of satellites in illuminated areas to obtain artificial lights in dawn-dusk area was verified, proving the effectiveness of the stray light elimination design. |
| 语种 | 英语 |
| 源URL | [http://ir.ciomp.ac.cn/handle/181722/62740]  |
| 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 | X.Zhong,Z.Q.Su,G.Zhang,et al. Analysis and Reduction of Solar Stray Light in the Nighttime Imaging Camera of Luojia-1 Satellite[J]. Sensors,2019,19(5):14. |
| APA | X.Zhong.,Z.Q.Su.,G.Zhang.,Z.G.Chen.,Y.Meng.,...&Y.Liu.(2019).Analysis and Reduction of Solar Stray Light in the Nighttime Imaging Camera of Luojia-1 Satellite.Sensors,19(5),14. |
| MLA | X.Zhong,et al."Analysis and Reduction of Solar Stray Light in the Nighttime Imaging Camera of Luojia-1 Satellite".Sensors 19.5(2019):14. |
入库方式： OAI收割
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。