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Development of Vehicle Management Platform Based on ArcGIS 会议论文  OAI收割
International Conference on Computer, Networks and Communication Engineering (ICCNCE), Beijing, MAY 23-24, 2013
作者:  
Mei J(梅晶);  Song H(宋宏);  Shang WL(尚文利);  Zhou XF(周晓锋)
收藏  |  浏览/下载:23/0  |  提交时间:2014/04/16
The design of real-time monitoring the electromechanical actuator operation state based on the CANoe (EI CONFERENCE) 会议论文  OAI收割
2nd Annual Conference on Electrical and Control Engineering, ICECE 2011, September 16, 2011 - September 18, 2011, Yichang, China
作者:  
Zhang J.;  Wu D.;  Zhang J.;  Zhang J.
收藏  |  浏览/下载:22/0  |  提交时间:2013/03/25
Dynamic data fixing for IR target radiation characteristics (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
Lihua C.; Juan C.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
The main methods to measure the target IR features are the following two ways: test and then measurement  or theoretical and simulation calculation. The former is direct measurement so the results are more accurate but the test is costly and complicated  so that it is limited in the application. Theoretical and simulation calculation are widely used in the target IR radiation calibration. Here we give the basic configuration of the calibration platform for measuring the IR radiation of the large area low temperature blackbody source  and discuss the calibration flowchart and key technologies for atmospheric transmission correction. The dynamic data are analyzed in real time to determine the IR radiation features in the data fusion subsystem  and the experimental results show that the calibration method is feasible and practical. 2010 IEEE.  
Design of CAN bus application layer protocol for aerocraft control system (EI CONFERENCE) 会议论文  OAI收割
2010 2nd International Conference on Industrial Mechatronics and Automation, ICIMA 2010, May 30, 2010 - May 31, 2010, Wuhan, China
作者:  
Zhang Y.;  Zhang H.;  Zhang H.;  Zhang W.;  Zhang W.
收藏  |  浏览/下载:36/0  |  提交时间:2013/03/25
A special Controller Area Network (CAN) bus application layer protocol is designed for the highly reliable communication of microcomputer-based systems in aerocraft control system by analyzing the practical time sequence of data transmission  data priority  data type and data function etc in this paper. Identifier distribution  data storage form  data type  data exchange method and fault handling mechanism of the application layer protocol are specified in detail in the background of a real aerocraft control system. At last a simulation platform based on CAN bus for aerocraft control system is built to validate the design. Experimental results show that this application layer protocol meets the requirements of data transmission reliability  real-time and high efficiency. The bus load rate is low and there is great room for expansion. 2010 IEEE.  
A new spaceborne compression approach for remote sensing imagery (EI CONFERENCE) 会议论文  OAI收割
ICO20: Remote Sensing and Infrared Devices and Systems, August 21, 2005 - August 26, 2005, Changchun, China
作者:  
Xu S.
收藏  |  浏览/下载:31/0  |  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.  
过程控制系统集成方法研究及应用 学位论文  OAI收割
工学博士, 中国科学院自动化研究所: 中国科学院自动化研究所, 1998
作者:  
曾隽芳
收藏  |  浏览/下载:54/0  |  提交时间:2015/09/02