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.
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
�Ӽ�. ��������Ƶ�������װ���뷢չ[J].�������ӹ���,2008,28(6):27-29 Zhong Jian.Equipment and development tendency of the infrared imaging guidance weapon[J].Ship Electronic Engineering,2008,28(6):267-29(in Chinese)
���.������ѧ[M].����:������ҵ������,2006:7-8 Li Guichun.Aero-optics[M].Beijing:National Defense Industry Press,2006:7-8 (in Chinese)
��Ȩɭ.���ڵ������ͶӰ������������ȡ��ͼ��ʶ���о� .�Ͼ�:�Ͼ�����ѧ�������ѧ�뼼��ѧԺ,2006 Sun Quansen.Research on feature extraction and image recognition based on correlation projection analysis .Nanjing:School of Computer Science & Technology,Nanjing University of Science and Technology,2006(in Chinese)