机构

• 地理科学与资源研究所 [2]
• 长春光学精密机械与物... [1]
• 遥感与数字地球研究所 [1]

采集方式

• OAI收割 [4]

内容类型

• 会议论文 [2]
• EI期刊论文 [1]
• SCI/SSCI论文 [1]

发表日期

• 2013 [1]
• 2011 [2]
• 2007 [1]

学科主题

筛选

浏览/检索结果: 共4条，第1-4条 帮助 条数/页： 5101520253035404550556065707580859095100 排序方式： 请选择题名升序题名降序提交时间升序提交时间降序作者升序作者降序发表日期升序发表日期降序 Application of TRIPLEX model for predicting Cunninghamia lanceolata and Pinus massoniana forest stand production in Hunan Province, southern China EI期刊论文  OAI收割 2013 作者:  Yu Guirui 收藏  |  浏览/下载：29/0  |  提交时间：2014/12/31 Forestry  Biomass  Computer simulation  Digital storage  Forecasting   Research on computer control strategy for optical electric tracking system (EI CONFERENCE) 会议论文  OAI收割 2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011, August 7, 2011 - August 10, 2011, Beijing, China 作者:  Li M. 收藏  |  浏览/下载：23/0  |  提交时间：2013/03/25 In this paper  mathematic model and computer control strategy for optical electrical tracking system have been researched and discussed. First  the system's structure and its work process have been analyzed. Second  according to the system's moving law  the system's mathematic model has been built. As to the computer control strategy  trigger guiding  two closed loop PID control method as well as compound control method have been applied to satisfy the tracking accuracy. Third  we apply the bilinear transformation to get the digital system  and the sample time is 800Hz. The simulation results indicate that the maximum tracking error can be limited to less than 0.5 and the regulator time can be 0.04s. Then the control project resonance frequency should be more than 200Hz and the sample frequency should be more than 400Hz to meet the control accuracy requirement. So we can conclude that the system indexes such as swiftness  high accuracy as long as real time have been satisfied. And the requirement of mechanical property has been present which is very useful to mechanical working. 2011 IEEE.   Progress in global ecological modelling SCI/SSCI论文  OAI收割 2011 Yue T. X.; Jorgensen S. E.; Larocque G. R. 收藏  |  浏览/下载：101/0  |  提交时间：2012/06/08 Global ecological modeling  Systems ecology  Earth surface modeling  Scale-dependent spatial analyses  Spatially explicit models  Data  sharing  major terrestrial ecosystems  digital-computer simulation  climate-change  earth system  linking gis  planet simulator  population  dynamics  information  resources   Realization of image smear compensation for multi-mode airborne digital camera system 会议论文  OAI收割 MIPPR 2007: Medical Imaging, Parallel Processing of Images, and Optimization Techniques, Wuhan, China, November 15, 2007 - November 17,2007 Liu, Xue; Zhang, Wenjuan; Fang, Junyong; Wei, Zheng; Zhang, Bing; Zheng, Lanfen; Tong, Qingxi 收藏  |  浏览/下载：57/0  |  提交时间：2014/12/07 Digital cameras  Aerial photography  Aircraft  Computer simulation  Image acquisition  Image reconstruction