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	Disciplining a Rubidium Atomic Clock Based on Adaptive Kalman Filter 期刊论文 OAI收割 SENSORS, 2024, 卷号: 24, 期号: 14, 页码: 17 作者: Liu, Kun; Guan, Xiaolong; Ren, Xiaoqian; Wu, Jianfeng \| 收藏 \| 浏览/下载：12/0 \| 提交时间：2025/04/03 adaptive Kalman filter rubidium atomic clock autocovariance least squares time and frequency Allan deviation
	Generic Demosaicking Method for Multispectral Filter Arrays Based on Adaptive Frequency Domain Filtering 会议论文 OAI收割 Virtual, Online, China, 2021-10-15 作者: Wang, Zecheng; Zhang, Geng; Hu, Bingliang \| 收藏 \| 浏览/下载：46/0 \| 提交时间：2022/05/11 Adaptive frequency domain filtering (AFDF) Demosaicking Multispectral imaging Multispectral filter array (MSFA)
	Detecting an atomic clock frequency anomaly using an adaptive Kalman filter algorithm 期刊论文 OAI收割 Metrologia, 2018, 卷号: 55, 期号: 3 作者: Song,Huijie; Dong,Shaowu; Wu,Wenjun; Jiang,Meng; Wang,Weixiong \| 收藏 \| 浏览/下载：29/0 \| 提交时间：2021/11/29 atomic clock Kalman filter frequency anomaly adaptive factor chi-square statistics
	Research on satellite platform vibration compensation technology for space optical communication (EI CONFERENCE) 会议论文 OAI收割 2012 International Meeting on Opto-Electronics Engineering and Materials Research, OEMR 2012, July 27, 2012 - July 29, 2012, Shenyang, Liaoning, China Han C.; Li X. 收藏 \| 浏览/下载：22/0 \| 提交时间：2013/03/25 The piezo-electric steering control system is used to compensate the vibration of satellite platform. The mathematical model of piezo-electric steering system is built. The adaptive controller based on improved LMS filter algorithm is designed according to this system characteristic. The adaptive delay filter is designed to solve slow convergence speed problem of traditional algorithm. Meanwhile the adaptive delay filter can also compensate phase delay of control circuit. The adaptive deviation filter is introduced and it effectively compensates the vibration deviation which is low frequency and high amplitude. The experimental results show that the remained errors are rad which meets space optical communication requirement and proves that this control scheme is valid and feasible. (2012) Trans Tech Publications Switzerland.
	De-striping algorithm in ALOS satellite imagery based on adaptive frequency filter 会议论文 OAI收割 Image and Signal Processing for Remote Sensing Xviii Cao Yutian; Yan Dongmei; Wang Gang; You Shucheng 收藏 \| 浏览/下载：30/0 \| 提交时间：2014/12/07 de-striping algorithm ALOS imagery adaptive frequency filter oblique stripe noises REMOVAL
	Adaptive Wiener filtering with Gaussian fitted point spread function in image restoration (EI CONFERENCE) 会议论文 OAI收割 2011 IEEE 2nd International Conference on Software Engineering and Service Science, ICSESS 2011, July 15, 2011 - July 17, 2011, Beijing, China 作者: Yang L.; Zhang X.; Zhang X.; Zhang X.; Yang L. 收藏 \| 浏览/下载：44/0 \| 提交时间：2013/03/25 In the imaging process of the space remote sensing camera there was degradation phenomenon in the acquired images. In order to reduce the image blur caused by the degradation the remote sensing images were restored to give prominence to the characteristic objects in the images. First the frequency-domain notch filter was adopted to remove strip noises in the images. Then using the ground characters with the knife-edge shape in the images the point spread function of the imaging system was estimated. In order to improve the accuracy the estimated point spread function was corrected with Gaussian fitting method. Finally the images were restored using the adaptive Wiener filtering with the fitted point spread function. Experimental results of the real remote sensing images showed that almost all strip noises in the images were eliminated. After the denoised images were restored its variance and its gray mean gradient increased also its laplacian gradient increased. Restoration with Gaussian fitted point spread function is beneficial to interpreting and analyzing the remote sensing images. After restoration the blur phenomenon of the images is reduced. The characters are highlighted and the visual effect of the images is clearer. 2011 IEEE.
	Detecting of multi-target in sea or sky background based on wavelet energy (EI CONFERENCE) 会议论文 OAI收割 Advanced Sensor Systems and Applications II, November 8, 2004 - November 12, 2004, Beijing, China 作者: Liu G. 收藏 \| 浏览/下载：19/0 \| 提交时间：2013/03/25 The technology of multi-target tracking is always detecting small targets in complex background. According to the frequency characteristic of nature background and small target a method of detecting targets based on wavelet energy is suggested. The energy of targets in horizontal and vertical direction outclass that of background or we can say the gray degree of targets outclass that of background. Then through selecting adaptive region-value targets and background can be divided. By the method of classifying the figure centers of every target can be calculated. According to the figure centers of every target in several neighboring frames the position and velocity of every target in next frame can be estimated by Kalman filter. Experiment results have shown that small targets in sea or sky nature background can be detected by this method and they can be tracking.