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	Investigation of the effects of ni-based alloy k465 on the normal spectral emissivity during oxidation 期刊论文 iSwitch采集 Infrared physics & technology, 2016, 卷号: 78, 页码: 214-222 作者: Zhao, Shunan; Li, Xunfeng; Zhou, Xiaoming; Cheng, Keyong; Huai, Xiulan 收藏 \| 浏览/下载：146/0 \| 提交时间：2019/05/09 Ni-based alloy k465 Oxidation Normal spectral emissivity Fitting model
	基于DEM的地壳运动模拟系统地形拟合与控制方法研究学位论文 OAI收割工学博士, 中国科学院自动化研究所: 中国科学院大学, 2015 作者: 马庆增收藏 \| 浏览/下载：75/0 \| 提交时间：2015/09/02 地壳运动模拟系统同步控制数字高程模型随机抽样一致性算法法向量地形表面拟合 Crustal movement simulation system Synchronization control Digital elevation model (DEM) Random sample consensus (RANSAC) Normal vector Land surface fitting
	The method on the measurement of the aircraft attitude by the spatial cosines relationship of the single station and planes to the intersection the multi-station of electro-optical theodolite (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computer, Mechatronics, Control and Electronic Engineering, CMCE 2010, August 24, 2010 - August 26, 2010, Changchun, China Zhao L.-R.; Cao Y.-G. 收藏 \| 浏览/下载：16/0 \| 提交时间：2013/03/25 In order to realize the aircraft attitude measurement The paper advances electro-optical theodolite methods of measuring the aircraft attitude by using the spatial cosines relationship the single station theodolite and how to use intersection of the multi-station theodolite. The single station theodolite was introduced in a measured distance from the aircraft posture information. An exhaustive approach was used to access to the aircraft axis of the feature points and the location in the space was used to obtain space posture parameters. The multi-station theodolite was introduced to get the information of the aircraft flight attitude by method of using planes to the intersection. Two-dimensional image to obtain objective axis by fitting algorithm using Hough transform. And then Calculate the vertical distance of the origin to the target of the central axis and the origin to the target of the central axis of the angle between the normal and the X-axis obtaining the linear equation in the two-dimensional plane. Two-dimensional axis of the target image and the camera system's optical center only identified a space plane. The aircraft yaw axis angle and pitch angle can be obtained by getting the space axis using plains to the intersection method. Experimental results show that attitude angle error of the single station theodolite is less than 1 when its distance is less than 6000m and attitude angle error of the multi-station theodolite is less than 0.6 when its intersection angle is between 30 and 150. In this paper according to test result of precision comparing the mathematical model is correct and the algorithm is reasonable in extracting effective parameters of the aircraft's attitude. 2010 IEEE.
	Estimating differential quantities from point cloud based on a linear fitting of normal vectors 期刊论文 OAI收割 SCIENCE IN CHINA SERIES F-INFORMATION SCIENCES, 2009, 卷号: 52, 期号: 3, 页码: 431-444 作者: Cheng ZhangLin; Zhang XiaoPeng 收藏 \| 浏览/下载：33/0 \| 提交时间：2015/08/12 differential geometric properties point cloud normal fitting Weingarten matrix
	Uncertainty analysis of CO2 flux components in subtropical evergreen coniferous plantation EI期刊论文 OAI收割 2009 Liu Min; He Hong Lin; Yu Gui Rui; Luo Yi Qi; Sun Xiao Min; Wang Hui Min 收藏 \| 浏览/下载：32/0 \| 提交时间：2012/06/11 Curve fitting Ecology Fluxes Least squares approximations Maximum likelihood Maximum likelihood estimation Normal distribution Optimization Parameter estimation Structural optimization Tropics
	Based on Householder transform of the Zernike polynomial wave front fitting method to solve active optics correction force (EI CONFERENCE) 会议论文 OAI收割 Infrared Materials, Devices, and Applications, November 12, 2007 - November 15, 2007, Beijing, China 作者: Wu X.-X. 收藏 \| 浏览/下载：27/0 \| 提交时间：2013/03/25 Corrective force solving is a critical technology of the active optics. A method to solve active optics corrective force is introduced which is based on Householder transform of Zernike polynomial wave front fitting this method is different from the traditional least square method and Gram-Schmid orthogonal method because it does not bring ill-conditioned polynomial without constructing normal equation so it can avoid calculation error wave front fitting is precision. Based on the coefficient of the Zernike polynomial and the response function of the each actuator the stiffness matrix of the primary mirror is built and then adopting the damp least square method to calculate corrective force. Based on this method cp400m test mirror is simulated many times the calculation result approve: if the Householder transform is adopted wave front fitting is precision the result is stabilization and corrective effectiveness is better.