Evaluations on aero-optic effects of subsonic airborne electro-optical system
A simple method based on CFD code and Matlab for aero-optic effects is presented. Density fluctuation from CFD code due to the changes of such factors as altitude, speed, equipment location, and wavelength is introduced as an input to Matlab. The overall calculations are in Matlab. The results show that the performance of electro-optical (EO) system can be improved when the altitude increasing, the speed is as slowly as possible, and the equipment location moves to the leading edge of the airborne platform as far as possible, for the wavelength there is an optimum one when the indexes of contrast and resolution of the system are both considered. All of these methods can minimize the optical aberrations. Several numerical simulations demonstrate the method.
Huilin Jiang：Changchun University of Science and Technology, Changchun 130022
备注：This work was supported by the National "863" Program of China. K. Yin's e-mail address is email@example.com
【1】D. R. Neal, E. Hedlund, M. Lederer, A. Collier, C. Spring, and B. Yanta, in Proceedings of 20th Advanced Measurement and Ground Testing Technology Conference AIAA 2701 (1998).
【2】Z.-F. Jiang, F.-J. Xi, J. Hou, and W.-Y. Li, Chin. J. Lasers (in Chinese) 31, 943 (2004).
【3】X. Yin, Engineering Science (in Chinese) 7, 1 (2005).
【4】E. J. Jumper and R. J. Hugo, AIAA Journal 33, 2151 (1995).
【5】B. F. Carroll, E. Boulos, M. Systma, L. N. Cattafesta, J. P. Hubner, and M. Sheplak, in Proceedings of 42nd American Institute of Aeronautics and Astronautics Aerospace Sciences Meeting and Exhibit AIAA 936 (2004).
【6】N. Sinha and S. Arunajatesan, in Proceedings of 35th American Institute of Aeronautics and Astronautics Plasmadynamics and Lasers Conference AIAA 2448 (2004).
【7】C. Wyckham, S. H. Zaidi, R. B. Miles, and A. Smits, in Proceedings of 36th American Institute of Aeronautics and Astronautics Plamadynamics and Lasers Conference AIAA 4775 (2005).
【8】S. Gordeyev, D. Duffin, and E. Jumper, in Proceedings of International Conference on Advanced Optical Diagnostics in Fluids, Solids and Combustion v0020 (2004).
【9】Fluent news, Newsletter Vol. 10, Issue 2, winter 2001, Lebanon, N.H 03766 USA.
【10】E. Tromeur, E. Garnier, and P. Sagaul, J. Fluids Eng. 128, 239 (2006).
【12】X.-W. Du, Chin. J. Lasers (in Chinese) 24, 327 (1997).
【13】N. E. Dalrymple, Mirror seeing, Advanced Technology Solar Telescope Project Document, PRT-0003 (REV A) (2002).
Kexin Yin, Huilin Jiang, "Evaluations on aero-optic effects of subsonic airborne electro-optical system," Chinese Optics Letters 4(8), 435-438 (2006)