Abstract
As circumstance temperature of space camera changes, flex of structural components and distortion of optical components lead to change of focal length and image quality. Radial Basis Function (RBF) network is used to approximate the complex nonlinear relation between focalization quantity, image quality, temperature level and axial temperature difference of space camera. After the RBF Network is trained with thermo-optical experiment data, temperature level and axial temperature difference could be input to the network to obtain colder value of best image position. In this way focusing forecast under different temperatures can be realized. Results of focusing forecast experiment validate this method.
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References
Wang, H., Tian, T.Y.: Effect of axial temperature difference on imaging quality of space remote sensor optical system. Optics and Precision Engineering 15(10), 1489–1494 (2007)
Lin, Z.R.: Thermo-Optical analysis of a typical R-C imaging system’s primary optical equipment. Spacecraft Recovery & Remote Sensing 27(2), 23–27 (2006)
Wang, H., Han, C.Y.: Study on the thermal effects of the optical system in a aerospace camera. Optical Technique 29(4), 451–457 (2003)
Krzyzak, A., Linder, T., Lugosi, G.: Nonparametric Estimation and Classification Using Radial Basis Function Nets and Empirical Risk Minimization. IEEE Trans. on Neural Networks 2(7), 475–487 (1996)
Esposito, A., Marinaro, M., Oricchio, D., Scarpetta, S.: Approximation of Continuous and Discontinuous Mapping by a Growing Neural RBF-based Algorithm. Neural Networks 13(6), 651–665 (2000)
Gostik, R.W.: OTF-based optimization criteria for automatic optical design. Optical and Quantum Electronics 1(8), 31–37 (1976)
Fantone, S.D., Imrie, D.A., Orband, D.: MTF testing algorithms for sampled thermal imaging systems. In: Proceedings of SPIE, vol. 6835, p. 683510 (2007)
Demuth, H., Beale, M., Hagan, M.: Neural Network Toolbox for use with MATLAB User’s Guide, 6th edn. The MathWorks Inc., Natick (2008)
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© 2009 Springer-Verlag Berlin Heidelberg
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Wu, X., Liu, J., Yu, D. (2009). Space Camera Focusing Forecast Based on RBF Network. In: Cai, Z., Li, Z., Kang, Z., Liu, Y. (eds) Computational Intelligence and Intelligent Systems. ISICA 2009. Communications in Computer and Information Science, vol 51. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-04962-0_23
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DOI: https://doi.org/10.1007/978-3-642-04962-0_23
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-04961-3
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