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Analysis of aero-optical distortions based on canonical correlation analysis and proper orthogonal decomposition
Xu Dong, Liu Haowei, Duan Yue*
School of Instrument Science and Opto-electronics Engineering, Beijing University of Aeronautics and Astronautics, Beijing 100191, China

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Abstract�� The methods of canonical correlation analysis (CCA) and proper orthogonal decomposition (POD) were used to study the 3D density field data computed by computational fluid dynamics (CFD). 2D-CCA was adopted to extract the canonical correction features between two cross sections along the spanwise, and then POD was adopted to eliminate the redundancy information between two cross sections. In this way, the features containing the domain information were extracted from the original data. The extracted feartures are then used to reconstruct the 3D density field, and the simulated corresponding aero-optical effect distortions gives the evidences that light transmission in reconstructed field is similar to the original field.
Keywords�� aero-optics   canonical correlation analysis   proper orthogonal decomposition   aero-optical distortions   coherent structure     
Received 2010-09-21;
Fund:

������Ȼ��ѧ����������Ŀ(60878051); ���տ�ѧ����������Ŀ(20090151006)

About author: �� ��(1973-),��,����������,������, xudong@buaa.edu.cn.
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��, ����ΰ, �Ϋh.����CCA��POD��������ѧ�������[J]  �������պ����ѧѧ��, 2012,V38(1): 17-21
Xu Dong, Liu Haowei, Duan Yue.Analysis of aero-optical distortions based on canonical correlation analysis and proper orthogonal decomposition[J]  JOURNAL OF BEIJING UNIVERSITY OF AERONAUTICS AND A, 2012,V38(1): 17-21
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