Acta Photonica Sinica, Volume. 43, Issue 12, 1201001(2014)
Research of Numerical Simulation and Comparison of Experiment from Differential Image Motion Monitor
Differential image motion monitor is widely used to obtain real-time seeing. Differential image motion was numerical simulated by random phase screen and optical defocus aberration, and the measurement accuracy of differential image motion monitor was analyzed, which showed that differential image motion monitor can reliably measure the near-ground turbulence. Comparision of experiment of two differential image motion monitors with the same hardwares was carried out at Xinglong Station of National Astronomical Observatory of China. The correlation between exposure time and measuring results was analyzed. The results show that the limited exposue time will reduce differential image motion and underestimate seeing value, and the trends over time and statistics of measurement results have good consistency.
Get Citation
Copy Citation Text
CHEN Hua-lin, PEI Chong, YUAN Xiang-yan, CUI Xiang-qun. Research of Numerical Simulation and Comparison of Experiment from Differential Image Motion Monitor[J]. Acta Photonica Sinica, 2014, 43(12): 1201001
Category: Atmospheric and Oceanic Optics
Received: May. 4, 2014
Accepted: --
Published Online: Dec. 26, 2014
The Author Email: Hua-lin CHEN (hualinchen@niaot.ac.cn)