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Chinese Academy of Sciences Institutional Repositories Grid
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CAS IR Grid
机构
地质与地球物理研究所 [1]
新疆生态与地理研究所 [1]
长春光学精密机械与物... [1]
数学与系统科学研究院 [1]
大连化学物理研究所 [1]
光电技术研究所 [1]
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OAI收割 [6]
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期刊论文 [4]
会议论文 [1]
学位论文 [1]
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2017 [3]
2016 [1]
2011 [1]
2007 [1]
学科主题
人文地理学 [1]
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On-line aerodynamic identification of quadrotor and its application to tracking control
期刊论文
OAI收割
IET CONTROL THEORY AND APPLICATIONS, 2017, 卷号: 11, 期号: 17, 页码: 3097-3106
作者:
Lei, Wenchao
;
Li, Chanying
  |  
收藏
  |  
浏览/下载:144/0
  |  
提交时间:2018/07/30
helicopters
autonomous aerial vehicles
mobile robots
trajectory control
compensation
nonlinear control systems
discrete time systems
aerodynamics
online aerodynamic identification
quadrotor
tracking control
aerodynamic effects
quadrotor-type unmanned aerial vehicles
recursive least squares algorithm
aerodynamic parameters
accelerometer
nonlinear discrete-time trajectory tracking controllers
aerodynamic compensation
large-acceleration flight regime
BUILDING A HETEROGENEOUS Q MODEL: AN APPROACH USING SURFACE REFLECTION DATA
期刊论文
OAI收割
JOURNAL OF SEISMIC EXPLORATION, 2017, 卷号: 26, 期号: 4, 页码: 293-310
作者:
Wang, Jin
;
Liu, Wei
;
Zhang, Jianfeng
;
Zhao, Zhonghua
  |  
收藏
  |  
浏览/下载:31/0
  |  
提交时间:2017/11/24
Q model
Q scanning
compensation effects
interpolation algorithm
和田地区农业碳效应及农业碳汇补偿机制研究
学位论文
OAI收割
新疆乌鲁木齐: 中国科学院大学, 2017
作者:
熊传合
  |  
收藏
  |  
浏览/下载:180/0
  |  
提交时间:2018/01/24
农业碳效应
农业碳汇补偿
减源増汇对策
和田地区
Agricultural Carbon Effects
Agriculture Carbon Sinks Compensation
Countermeasures To Promote Agricultural Carbon Emissions Reduction And Agricultural Carbon Sink Increase
Hotan Prefecture
Automatic low-order aberration compensator for solid-state slab lasers
期刊论文
OAI收割
Proceedings of SPIE: Laser Beam Shaping XVII, 2016, 卷号: 9950, 页码: 99500I
作者:
Yu, Xin
;
Dong, Lizhi
;
Lai, Boheng
;
Yang, Ping
;
Kong, Qingfeng
  |  
收藏
  |  
浏览/下载:38/0
  |  
提交时间:2018/06/14
Aspect Ratio
Compensation (Personnel)
Landforms
Laser Beam Effects
Laser Beams
Ray Tracing
Wavefronts
Design of motion compensation mechanism of satellite remote sensing camera (EI CONFERENCE)
会议论文
OAI收割
International Symposium on Photoelectronic Detection and Imaging 2011: Space Exploration Technologies and Applications, May 24, 2011 - May 26, 2011, Beijing, China
Gu S.
;
Yan Y.
;
Xu K.
;
Jin G.
收藏
  |  
浏览/下载:49/0
  |  
提交时间:2013/03/25
With the development of aerospace remote sensing technology
the ground resolution of remote sensing camera enhances continuously. Since there is relative motion between camera and ground target when taking pictures
the target image recorded in recording media is moved and blurred. In order to enhance the imaging quality and resolution of the camera
the image motion had to be compensated. In order to abate the effect of image motion to image quality of space camera and improve the resolution of the camera
the compensation method of image motion to space camera is researched. First
the reason of producing drift angle and adjustment principle are analyzed in this paper. This paper introduce the composition and transmission principle of image motion compensation mechanism. Second
the system adopts 80C31 as controller of drift angle
and adopts stepping motor for actuators
and adopts absolute photoelectric encoder as the drift Angle measuring element. Then the control mathematical model of the image motion compensation mechanism are deduced
and it achieve the closed-loop control of the drift angle position. At the last
this paper analyses the transmission precision of the mechanism. Through the experiment
we measured the actual precision of the image motion compensation mechanism
and compared with the theoretical analysis. There are two major contributions in this paper. First
the traditional image motion compensation mechanism is big volume and quality heavy. This has not fit for the development trend of space camera miniaturization and lightweight. But if reduce the volume and quality of mechanism
it will bring adverse effects for the precision and stiffness of mechanism. For this problem
This paper designed a image motion compensation that have some advantages such as small size
light weight at the same time
high precision
stiffness and so on. This image motion compensation can be applicable to the small optics cameras with high resolution. Second
the traditional mechanism control need to corrected
fitting and iterative for the control formula of mechanism. Only in this way
we can get the optimal control mathematical model. This paper has high precision of the control formula derived. It can achieve the high precision control without fitting
It also simplify the difficulty of control mathematical model establishment. This paper designed the range of adjusting of image motion compensation mechanism between -5 +5. Based on choosing-5
-4
-3
-2
-1
0
+1
+2
+3
+4
+4 as the expectation value of the imaginary drift angle
we get ten groups of the fact data in adjusting drift angle measured. The test results show that the precision of the drift angle control system can be achieved in 1. It can meet the system requirements that the precision of the control system is less than 3'
and it can achieve the high-precision image motion compensation. 2011 SPIE.
NH3 decomposition kinetics on supported Ru clusters: Morphology and particle size effect
期刊论文
OAI收割
catalysis letters, 2007, 卷号: 119, 期号: 3-4, 页码: 311-318
作者:
Zheng, Weiqing
;
Zhang, Jian
;
Xu, Hengyong
;
Li, Wenzhao
收藏
  |  
浏览/下载:36/0
  |  
提交时间:2015/11/11
ammonia decomposition
Ru
kenitics
size effects
compensation effect