Infrared and Laser Engineering, Volume. 46, Issue 9, 913001(2017)
Scanning measuring system of stray light for optical remote sensing satellite
For measuring the stray light level and verifying the ability of stray light suppression of optical remote satellite, the imaging time and orbital characteristic of some satellite were analyed, a scanning system of stray light measuring for optical remote satellite was developed, which was based on a large 7-dimension robot. According to the annual lighting condition of satellite in orbit, the controlling formulae were deduced for all the kinematic mechanism, with the scanning azimuth angle -90°-+90°, pitch angle -29°-+42.5°, and their angular accuracy were up to 0.2° and 0.1° separately, the position accuracy was better than 10 mm. Otherwise, an extinction subsystem, which was made was low reflectance material(lower than 1.5% between 400-1 600 nm) and large extinction structure and extinction coefficient could reach 9.9×10-7, was used to simulate extreme dark target and deep space room. The scanning system of stray light measuring for optical remote satellite can satisfy most optical payload at present for stray light measurement, analysis and verification.
Get Citation
Copy Citation Text
Li Junlin, Zhang Liming, Si Xiaolong, Huang Wenxin, Du Zhiqiang, Xu Weiwei, Wang Jixiang, Xu Yongping, Yang Baoyun, Zhu Xuemei, Wang Shaolin, Ma Wenjia, Yang Chunyan, Li Yang. Scanning measuring system of stray light for optical remote sensing satellite[J]. Infrared and Laser Engineering, 2017, 46(9): 913001
Category: 空间光学
Received: Jan. 5, 2017
Accepted: Feb. 3, 2017
Published Online: Nov. 17, 2017
The Author Email: Junlin Li (lijunlin628@foxmail.com)