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	Multi-parameter optimisation of optical bonding for the ultra-stable optical measurement bench in space-based platform 期刊论文 OAI收割 OPTICS AND LASER TECHNOLOGY, 2025, 卷号: 188, 页码: 14 作者: Pan, Guotao; Deng, Xiaoqin; Gao RH(高瑞弘); Wang SX(王少鑫); Liu HS(刘河山) \| 收藏 \| 浏览/下载：1/0 \| 提交时间：2025/06/23 Space-based platform Optical bonding technology Multi-parameter Ultra-stable optical measurement bench Noise stability measurement
	A Measurement Noise Rejection Method in the Feedback Control System Based on Noise Observer 期刊论文 OAI收割 IEEE Sensors Journal, 2021, 卷号: 21, 期号: 2, 页码: 1686-1693 作者: Ning, Zongqi; Mao, Yao; Huang, Yongmei; Xi, Zhou; Zhang, Chao. \| 收藏 \| 浏览/下载：61/0 \| 提交时间：2021/05/11 Noise measurement Feedback control Sensors Frequency measurement Control systems Frequency control Observers Measurement noise suppression noise observer system stability
	Centroid localization algorithm based on bicubic interpolation gray square weighted (EI CONFERENCE) 会议论文 OAI收割 2012 3rd International Conference on Advances in Materials and Manufacturing Processes, ICAMMP 2012, December 22, 2012 - December 23, 2012, Beihai, China 作者: Zhou J. 收藏 \| 浏览/下载：152/0 \| 提交时间：2013/03/25 The 3D coordinates of measured point is embodied in 2D image coordinate of the optical characteristic point via the visual measurement system. Based on the gray square weighted centroid localization algorithm the paper presents bicubic interpolation gray square weighted centroid localization algorithm increases the number of effective pixels around the optical characteristic point imaging center and reduces noise error via the gray square weighted improves the imaging center location accuracy of optical characteristic point realizes the accurate location of the optical characteristic points. Results indicate application of the proposed algorithm to location the standard tolerance along the direction of x is 0.0022 Pixel the standard tolerance along the direction of y is 0.0023 Pixel compared with the others the standard tolerance is minimum and discrete to a lesser degree distancing ideal image point that is the proposed algorithm has higher location accuracy. The maximum tolerance along the direction of x is 0.008 Pixel the one along the direction of y is 0.007 Pixel compared with the other two algorithms the maximum tolerance is minimum.Results indicate that the stability of the proposed algorithm is better. (2013) Trans Tech Publications Switzerland.
	Stabilization and tracking precision improved based on disturbance observer (EI CONFERENCE) 会议论文 OAI收割 2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China Sun G.; Zhu M.; Jia H. 收藏 \| 浏览/下载：31/0 \| 提交时间：2013/03/25 Based on the kinematics of semi-strapdown seeker the framework coordinate of the semi-strapdown seeker is established and the optical axis stabilization equation of semistrapdown seeker is deduced based on product of exponential (POE) formula. The stabilization control principle block diagram of semi-strapdown seeker is shown based on the stabilization equation. The main influence factors of the stability precision are pointed out such as friction disturbance velocity measurement noise and missile disturbance. For the sake of improving the stabilization precision and tracking precision disturbance observer was proposed in the inner loop of semi-strapdown seeker servo-control system. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation and optical axis stabilization precision and tracking precision are greatly improved. 2011 IEEE.
	Optical axis stabilization of semi-strapdown seeker based on disturbance observer (EI CONFERENCE) 会议论文 OAI收割 2011 International Conference on Information and Automation, ICIA 2011, June 6, 2011 - June 8, 2011, Shenzhen, China Sun G.; Zhu M.; Yin S.; Jia H. 收藏 \| 浏览/下载：24/0 \| 提交时间：2013/03/25 Based on the kinematics of semi-strapdown seeker the framework coordinate of the seeker is established. The optical axis stability equation of semi-strapdown seeker is deduced by using attitude transformation matrix. Then the stability control principle block diagram of semi-strapdown seeker is shown based on the stability equation. The main factors that influence the stabilization precision are pointed out such as friction disturbance velocity-measuring noise and missile disturbance. In order to improve the stabilization precision disturbance observer was proposed in semi-strapdown seeker stability control. The low frequency external disturbance and high frequency velocity measurement noise are effectively restrained by the disturbance observer as shown in hardware-in-loop simulation and optical axis stabilization precision is improved nearly 20 times and 5 times due to two different frequencies with same amplitude. 2011 IEEE.
	A Novel NMF Guided for Hyperspectral Unmixing From Incomplete and Noisy Data 期刊论文 OAI收割 IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 作者: Dong, Le; Lu, Xiaoqiang; Liu, Ganchao; Yuan, Yuan \| 收藏 \| 浏览/下载：19/0 \| 提交时间：2022/01/18 Image reconstruction Hyperspectral imaging Noise measurement Gaussian noise Interference Stability analysis Sensors Hyperspectral unmixing (HU) image reconstruction nonnegative matrix factorization (NMF) spatial-spectral information