机构

• 长春光学精密机械与物... [2]
• 软件研究所 [2]
• 遥感与数字地球研究所 [1]

采集方式

• OAI收割 [5]

内容类型

• 会议论文 [4]
• 期刊论文 [1]

发表日期

• 2012 [1]
• 2011 [2]
• 2009 [2]

学科主题

• Computer S... [1]
• Mathematic... [1]

筛选

浏览/检索结果: 共5条，第1-5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 Three-loop autopilot design and simulation (EI CONFERENCE) 会议论文  OAI收割 2012 9th IEEE International Conference on Mechatronics and Automation, ICMA 2012, August 5, 2012 - August 8, 2012, Chengdu, China 作者:  Zhang Y. 收藏  |  浏览/下载：44/0  |  提交时间：2013/03/25 In order to realize missile real-time change flight trajectory  three-loop autopilot is setting up. The structure characteristics  autopilot model  and control parameters design method were researched. Firstly  this paper introduced the 11th order three-loop autopilot model. With the principle of systems reduce model order  the 5th order model was deduced. On that basis  open-loop frequency characteristic and closed-loop frequency characteristic were analyzed. The variables of velocity ratio  dynamic pressure ratio and elevator efficiency ratio were leading to correct system nonlinear. And then autopilot gains design method were induced. System flight simulations were done  and result shows that autopilot gains played a good job in the flight trajectory  autopilot satisfied the flight index. 2012 IEEE.   computational complexity of holant problems 期刊论文  OAI收割 SIAM Journal on Computing, 2011, 卷号: 40, 期号: 4, 页码: 1101-1132 Cai Jin-Yi; Lu Pinyan; Xia Mingji   |  收藏  |  浏览/下载：21/0  |  提交时间：2013/10/08 Boolean functions  Interpolation  Real variables   a genetic clustering algorithm using a message-based similarity measure 会议论文  OAI收割 Chang Dongxia; Zhao Yao; Zheng Changwen; Zhang Xianda 收藏  |  浏览/下载：26/0  |  提交时间：2011/10/10 Chromosomes  Gallium alloys  Genetic algorithms  Mathematical operators  Message passing  Real variables   Optimizing control mode of optical payloads based on multi-population genetic algorithm (EI CONFERENCE) 会议论文  OAI收割 2009 IEEE International Conference on Mechatronics and Automation, ICMA 2009, August 9, 2009 - August 12, 2009, Changchun, China Xu W.; Jin G. 收藏  |  浏览/下载：24/0  |  提交时间：2013/03/25 Optimizing the control mode of optical payload could improve the payload's work efficiency. When the mathematic model of payload's control mode was established  optimization problems could be boiled down to seek the maximal value of the function with many variables. This paper put forward a calculational method to base the mathematic model  the calculational method was multi-population genetic algorithm (MPGA). After the 0-1 variables and real multidimensional ones had been coded separately  the algorithm established the populations independently  made the multidimensional variables as the centrosome and combined 0-1 ones to work out the maximal value of the function which was established to describe the control mode of the optical payload. Moreover  the emulational experiment had been done with the material arithmetic operators. The result indicates that the method using MPGA can hurdle the disadvantage of traditional ones which calculate slowly and get into local best value trap easily . It has the characters that not only fits large scale area scout  but also gets the best value in full scale rapidly  so this algorithm can better satisfy the technology demand for the intelligent control of optical payload. 2009 IEEE.   USE OF AN ENSEMBLE KALMAN FILTER FOR REAL-TIME INVERSION OF LEAF AREA INDEX FROM MODIS TIME SERIES DATA 会议论文  OAI收割 2009 Ieee International Geoscience and Remote Sensing Symposium, Vols 1-5, New York Xiao, Zhiqiang; Liang, Shunlin; Wang, Jindi; Wu, Xiyan 收藏  |  浏览/下载：23/0  |  提交时间：2014/12/07 Real-time inversion  leaf area index  ensemble Kalman filter  MODIS  RADIATIVE-TRANSFER MODEL  BIOPHYSICAL VARIABLES  CANOPY REFLECTANCE  RETRIEVAL  IMAGERY