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CORC

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Valuation Analysis of Chinese and American Listed Companies Based on Multiple Linear Regression and Grey Forecasting Model 会议论文
Virtual, Online, China, 2021-08-13
作者:  Li, Jinke;  Zhang, Qiang;  Zhang, ZhiJun;  Wang, Fan;  Li, Xijie
收藏  |  浏览/下载：15/0  |  提交时间：2021/12/22
Quess operations at chinese space science mission center 会议论文
Marseille, France, May 28, 2018 - June 1, 2018
作者:  Su, Ju;  Liu, Yurong;  Hu, Tai
收藏  |  浏览/下载：18/0  |  提交时间：2019/07/10
DAMPE operations at Chinese space science mission center 会议论文
14th International Conference on Space Operations, 2016, Daejeon, Korea, Republic of, May 16, 2016 - May 20, 2016
作者:  Liu, Yurong;  Hu, Tai
收藏  |  浏览/下载：17/0  |  提交时间：2016/11/08
TOWARD A MESOSCALE HYDROLOGICAL AND MARINE METEOROLOGICAL OBSERVATION NETWORK IN THE SOUTH CHINA SEA 会议论文
Bali, INDONESIA, JUN 04-05, 2016
作者:  Peng, Shiqiu;  Wang, Shengan;  Zu, Tingting;  Chen, Ju;  Wang, Qiang
收藏  |  浏览/下载：24/0  |  提交时间：2015/12/01
Technology rules management: International experience and china choices 会议论文
Proceedings of the 2005 Conference of System Dynamics and Management Science, Vol 2 - SUSTAINABLE DEVELOPMENT OF ASIA PACIFIC, Conference of System Dynamics and Management Science, Shanghai, PEOPLES R CHINA, Web of Science
Zhang, Jun; Wu, Guisheng; Peng, Xiang
收藏  |  浏览/下载：3/0
A new spaceborne compression approach for remote sensing imagery (EI CONFERENCE) 会议论文
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
Xu X.; Dong G.; Feng Y.; Xu S.
收藏  |  浏览/下载：20/0  |  提交时间：2013/03/25
After analyzing advantages and disadvantages of these typical encoding methods: SPIHT and VQ  a "DWT+MRLE" approach for spaceborne data compression was proposed in this paper. This approach includes two steps: Discrete Wavelet Transform (DWT) and Modified Run Length Encoding (MRLE). The former used CDF9/7 biorthogonal wavelet filters to powerfully get rid of correlation between pixels in imagery. The later put enlightening information into the lowest bit of some key-position transform coefficients. Consequently  CDF9/7 and MRLE together make hardware platform remain high real-time capability  and help reconstructed images keep good fidelity with PSNR being about 40dB  compared with the original ones. Comparison between experimentations on SPOT4's low-spatial-resolution (10m) imagery and Ikonos2's high-spatial-resolution (1m) imagery  shows this "DWT+MRLE" method having better performance for remote-sensed imagery  especially those of higher resolution. Although inferior to 8:1  Compression Ration (CR) here near 5:1 is greater than France SPOT5's 3:1 and American Ikonos2's 11:2.6 on-board data compression. More important  this method having less computational amount is good for spaceborne capability of real time. The consumed time of different image size is also presented in this paper  based on TI TMSC6416 DSP chip with 600MHz CPU cycle clock.  

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