Volume 8 Issue 2
Apr.  2015
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LI Zhen-wei, YANG Wen-bo, ZHANG Nan. Static pointing error of level mounting optoelectronic telescope[J]. Chinese Optics, 2015, 8(2): 263-269. doi: 10.3788/CO.20150802.0263
Citation: LI Zhen-wei, YANG Wen-bo, ZHANG Nan. Static pointing error of level mounting optoelectronic telescope[J]. Chinese Optics, 2015, 8(2): 263-269. doi: 10.3788/CO.20150802.0263

Static pointing error of level mounting optoelectronic telescope

doi: 10.3788/CO.20150802.0263
  • Received Date: 11 Oct 2014
  • Accepted Date: 13 Dec 2014
  • Publish Date: 25 Apr 2015
  • In order to improve the static pointing accuracy of level mounting optoelectronic telescope, the static pointing models are presented after theoretical analysis and experimental research, and modified model for level mounting optoelectronic telescope is established. First, spherical harmonic function model and modified model for level mounting optoelectronic telescope are introduced. Then 70 stars from Tycho-2 scattered uniformly in the sky were selected to be measured, and the discrete values of the 70 stars' pointing errors were gained in longitude and latitude dimensions, respectively. Finally, the coefficients in the total pointing error model were obtained by least square fitting method. Experimental results indicate that pointing precision of level mounting optoelectronic telescope can be improved from 152.10" (without modified model) to 4.76" (with modified model). The modified model for level mounting optoelectronic telescope can satisfy the requirements in general design, which can be widely applied in science and engineering field.

     

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