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长春光学精密机械与物... [2]
厦门大学 [1]
内容类型
会议论文 [2]
学位论文 [1]
发表日期
2014 [1]
2011 [2]
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法律标准研究
学位论文
2014, 2014
冷雪莹
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浏览/下载:3/0
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提交时间:2016/01/12
法律标准
不确定法律概念
法的精确性
legal standard
uncertainty conception of law
accuracy of law
Adaptive control at launching using three loop autopilot (EI CONFERENCE)
会议论文
2011 2nd International Conference on Mechanic Automation and Control Engineering, MACE 2011, July 15, 2011 - July 17, 2011, Inner Mongolia, China
Zhang Y.
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浏览/下载:19/0
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提交时间:2013/03/25
In order to guarantee the precise initial flight trajectory
control the missile disturbance of large disturbance torque
three loop adaptive autopilot was researched. The characteristics of the projectile and three loop autopilot instruction formation characteristics were analysed. From equivalent pitching angle of lateral acceleration feedback loop
combined with the instruction of generalized error
autopilot structure was simplified
and three loop autopilot adaptive control law and stability were designed. The test data show that when disturbance torque was 600Nm
the attitude angle generalized error was -4.4. In the time lasted about 15s
late trajectory accuracy was within 1.0.Three loop autopilot adaptive control law was able to control the disturbance of initial trajectory and adapt to dynamic characteristics changes
control system stability. It was the initial trajectory accurate solution method of flight. 2011 IEEE.
Research on computer control strategy for optical electric tracking system (EI CONFERENCE)
会议论文
2011 IEEE International Conference on Mechatronics and Automation, ICMA 2011, August 7, 2011 - August 10, 2011, Beijing, China
Li M.
;
Gao H.
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浏览/下载:21/0
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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.
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