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Simulation and feature analysis of modal acoustic emission wave in planar C/SIC composite 期刊论文
Journal of Vibroengineering, 2018, 卷号: 20, 页码: 748-761
作者:  Gao, Y.;  Xiao, D.
收藏  |  浏览/下载：6/0  |  提交时间：2019/12/30
A combined deloading method based on the underfrequency and undervoltage relay 期刊论文
Dianli Xitong Baohu yu Kongzhi/Power System Protection and Control, 2015, 卷号: 43, 期号: [db:dc_citation_issue], 页码: 48-54
作者:  Li, Ye;  Zhang, Baohui;  Bo, Zhiqian
收藏  |  浏览/下载：3/0  |  提交时间：2019/12/02
ADAMS Dynamics Simulating and Analysis of Vibration Signal for Deep-Groove Ball Bearings 期刊论文
Applied Mechanics and Materials, 2013, 卷号: Vol.312, 页码: 254-257
作者:  Zeng Zeng Yang;  Ji Gang Wu;  Bin Qin;  Yao Zhou Li
收藏  |  浏览/下载：2/0  |  提交时间：2020/01/05
新加坡小学华文教材汉字选编研究 学位论文
2012, 2012
缪锦瑞
收藏  |  浏览/下载：2/0  |  提交时间：2016/02/14
Adaptive Wiener filtering with Gaussian fitted point spread function in image restoration (EI CONFERENCE) 会议论文
2011 IEEE 2nd International Conference on Software Engineering and Service Science, ICSESS 2011, July 15, 2011 - July 17, 2011, Beijing, China
Yang L.; Zhang X.; Ren J.
收藏  |  浏览/下载：30/0  |  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.  
Frequency characters of the air-backed mandrel fiber-optic hydrophone 期刊论文
2010, 2010
Yin Kai; Zhang Min; Wang Li-wei; Zhou Hong-pu; Ding Tian-huai; Guo Ke; Jing Zhen-guo; Yu Xiu-juan; Liao Yan-biao
收藏  |  浏览/下载：3/0
基于频率层特征的相关反馈高效图像检索算法 期刊论文
2010, 2010
翟志华; 王留奎; 王端; ZHAI Zhi-hua; WANG Liu-kui; WANG Duan
收藏  |  浏览/下载：6/0
芯轴型光纤水听器频率特性研究 期刊论文
2010, 2010
殷锴; 张敏; 王立威; 周宏朴; 丁天怀; 郭克; 荆振国; 于秀娟; 廖延彪; YIN Kai; ZHANG Min; WANG Li-wei; ZHOU Hong-pu; DING Tian-huai; GUO Ke; JING Zhen-guo; YU Xiu-juan; LIAO Yan-biao
收藏  |  浏览/下载：1/0
DIFFERENCES AMONG DIFFERENT DATABASES IN THE NUMBER OF TROPICAL CYCLONES FORMING OVER THE WESTERN NORTH PACIFIC 期刊论文
JOURNAL OF TROPICAL METEOROLOGY, 2010, 卷号: 16, 期号: 4, 页码: 341-347
Wu, SA; Kong, HJ; Wu, H
收藏  |  浏览/下载：12/0  |  提交时间：2011/07/03
中国股市超高频数据反馈特征实证研究 期刊论文
运筹与管理, 2008, 卷号: 17, 期号: 3, 页码: 114-121,106
作者:  刘衡郁
收藏  |  浏览/下载：2/0  |  提交时间：2019/08/22

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