SURFACE FITTING ALGORITHM OF RADAR ANTENNA PROFILE MEASUREMENT
Chen Xingquan 1) ; and Wang Jiexian 1, 2)
1)Department of Surveying and Geo-Informatics,Tongji University, Shanghai 2000922)Key Laboratory of Modern Engineering Surveying of SBSM, Shanghai 200092
Abstract Radar antennas on long-period erection state can easily lead to deformation. Therefore, periodical test is required. However,the standard equation parameters of the curved surface can not be computed out with existing surface fitting methods. A general quadric equation and eigenvalue condition are used to fit the elliptic paraboloid equation, and the conversion relationship between the measurement coordinates and the standard coordinates expounded. Besides, the relationship between eigenvectors and rotation angles is shown. The general format of elliptic paraboloid equation is converted into standard format. An engineering example verifies that this method is applicable.
Key words ：
surface fitting
radar antenna
coordinates transformation
eigenvector
eigenvalue
Received: 01 January 1900
Corresponding Authors:
Chen Xingquan
Cite this article:
Chen Xingquan ,and Wang Jiexian. SURFACE FITTING ALGORITHM OF RADAR ANTENNA PROFILE MEASUREMENT[J]. , 2008, 28(4): 111-114.
Chen Xingquan ,and Wang Jiexian. SURFACE FITTING ALGORITHM OF RADAR ANTENNA PROFILE MEASUREMENT[J]. jgg, 2008, 28(4): 111-114.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2008/V28/I4/111
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