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	High resolution imaging technique based on phase diversity hybrid method 期刊论文 OAI收割 ACTA PHYSICA SINICA, 2012, 卷号: 61, 期号: 2 作者: Li Fei; Rao Chang-Hui 收藏 \| 浏览/下载：16/0 \| 提交时间：2015/07/10 high resolution imaging phase diversity hybrid method
	Phase error estimation with broadband white light by Phase Diversity (EI CONFERENCE) 会议论文 OAI收割 6th International Symposium on Precision Engineering Measurements and Instrumentation, August 8, 2010 - August 11, 2010, Hangzhou, China 作者: Wang Z.; Wang B.; Zhang X.; Zhang X.; Zhang X. 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/03/25 The technique of Phase Diversity (PD) is widely adopted to measure the wavefront error caused by atmosphere turbulence and system error. PD solves the Zernike coefficients of the wavefront by utilizing two images obtained with different defocus value. In this paper we propose a method to restore the image and estimate the wavefront error of an imaging system. And we use present white noises to verify the robustness of the algorithm. We design an experiment system and implement it in our laboratory. The proposed algorithm is validated by computer simulations and experimental results. To use a broadband white object in experimental system a reasonable simplification for the system model is done. Our results show that the robustness against Gaussian white noises of the method is better then the case when the variance value is 0.03. The proposed method can be used as a wavefront sensor and restore the degradative images by photoelectric image system. 2010 SPIE.
	Optical Misalignment Sensing for Optical Aperture Synthesis Telescope by Using Phase Diversity 会议论文 OAI收割 Marseille, France, 2008-6-23 作者: Yongtian Zhu; Zhen Wu; Fang Cao 收藏 \| 浏览/下载：28/0 \| 提交时间：2014/01/01 Aperture synthesis telescope Wave-front sensors phase diversity method Genetic Algorithms