中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
首页
机构
成果
学者
登录
注册
登陆
×
验证码:
换一张
忘记密码?
记住我
×
校外用户登录
CAS IR Grid
机构
长春光学精密机械与物... [3]
力学研究所 [1]
成都山地灾害与环境研... [1]
新疆天文台 [1]
深海科学与工程研究所 [1]
沈阳自动化研究所 [1]
更多
采集方式
OAI收割 [9]
内容类型
期刊论文 [6]
会议论文 [3]
发表日期
2020 [1]
2018 [2]
2016 [1]
2012 [2]
2011 [2]
2009 [1]
更多
学科主题
Chemistry [1]
摄影测量与遥感技术 [1]
筛选
浏览/检索结果:
共9条,第1-9条
帮助
条数/页:
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
90
95
100
排序方式:
请选择
作者升序
作者降序
发表日期升序
发表日期降序
题名升序
题名降序
提交时间升序
提交时间降序
Optimized Design for Sparse Arrays in 3-D Imaging Sonar Systems Based on Perturbed Bayesian Compressive Sensing
期刊论文
OAI收割
IEEE SENSORS JOURNAL, 2020, 卷号: 20, 期号: 10, 页码: 5554-5565
作者:
Lin, Zhenwei
;
Chen, Yaowu
;
Liu, Xuesong
;
Jiang, Rongxin
;
Shen, Binjian
  |  
收藏
  |  
浏览/下载:71/0
  |  
提交时间:2020/06/16
Bayesian compressed sensing
convex optimization
element merging
phased array 3-D imaging sonar system
position perturbation
sparse planar array
Optimal Sensor Placement Based on Eigenvalues Analysis for Sensing Deformation of Wing Frame Using iFEM
期刊论文
OAI收割
SENSORS, 2018, 卷号: 18, 期号: 8, 页码: 22
作者:
Du, Jingli
;
Xu, Qian
;
Bao, Hong
;
Zhao, Yong
  |  
收藏
  |  
浏览/下载:94/0
  |  
提交时间:2018/11/07
Deformation Sensing
Inverse Finite Element Method
Timoshenko Beam Theory
Optimal Placement Of Sensors
Eigenvalue Analysis
Thermal control design and experimental verification of light off-axis space optical remote sensor in the sun-synchronous orbit
期刊论文
OAI收割
International Journal of Heat and Technology, 2018, 卷号: 36, 期号: 1, 页码: 125-132
作者:
Guan, Fengwei
;
Zhang, Feng
;
Cao, Nailiang
;
Liu, Qiang
;
Liu, Ju
  |  
收藏
  |  
浏览/下载:49/0
  |  
提交时间:2019/09/17
Finite element method
Control systems
Electric power utilization
Electromagnetic pumps
Motion compensation
Remote sensing
Temperature
Temperature control
Design of elastic component of optic intensity force sensing catheter based on finite element analysis
会议论文
OAI收割
28th Chinese Control and Decision Conference, CCDC 2016, Yinchuan, China, May 28-30, 2016
作者:
Zou Y(邹运)
;
Liu H(刘浩)
;
Gao AZ(高安柱)
;
Zhou YY(周圆圆)
;
Hao SW(郝思文)
收藏
  |  
浏览/下载:72/0
  |  
提交时间:2016/09/13
Elastic component
Force sensing catheter
Finite element analysis
Cardiac surgery
Potentiometric sensor for sensitive and selective detection of heparin
期刊论文
OAI收割
CHINESE CHEMICAL LETTERS, 2012, 卷号: 23, 期号: 2, 页码: 233-236
作者:
Chen, Yan
;
Liang, Rong Ning
;
Qin, Wei
收藏
  |  
浏览/下载:29/0
  |  
提交时间:2012/06/13
Potentiometry
Sensing element
Heparin
Protamine
Polyion sensor
Combining the matter element model with the associated function of probability transformation for multi-source remote sensing data classification in mountainous regions
期刊论文
OAI收割
ISPRS JOURNAL OF PHOTOGRAMMETRY AND REMOTE SENSING, 2012, 卷号: 67, 期号: 1, 页码: 80-92
作者:
Li, Ainong
;
Jiang, Jingang
;
Bian, Jinhu
;
Deng, Wei
收藏
  |  
浏览/下载:61/0
  |  
提交时间:2012/12/13
Remote sensing
Classification
Matter element model
Associated function
Mountainous region
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:62/0
  |  
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.
Design and test of pointing mirror assembly for spaceborne remote sensing camera (EI CONFERENCE)
会议论文
OAI收割
2011 International Conference on Electronics, Communications and Control, ICECC 2011, September 9, 2011 - September 11, 2011, Ningbo, China
作者:
Chen W.
收藏
  |  
浏览/下载:48/0
  |  
提交时间:2013/03/25
In order to ensure the surface figure of the pointing mirror (460mm long
290mm wide) in spaceborne remote sensing camera
Silicon Carbide was selected as the mirror material. The form of composite triangular and rectangular and the combination of open and closed back was explored in the lightweight design. A new kinematic mount and flexible structure in axis is used to hold the mirror around the lateral surface. The structure can minimize distortions induced by coefficient of thermal expansion mismatch among the materials. This eliminates the bending of the integral mount under the weight of the mirror. Optical performance of the mirror was analyzed under gravity load and temperature load using finite element method. Predicted surface figure error based on the removal of bias
tilt and power was calculated using an in-house Matlab script for mirrors. The pointing mirror assembly was tested using open loop servo control. And the surface figure was checked using interferometer. Surface figure accuracy is better than 1/30 ( 632.8nm
rms). The results show that the kinematic mount induces minimal figure error on the optical surface. 2011 IEEE.
An Instrumented Indentation Method for Young's Modulus Measurement with Accuracy Estimation
期刊论文
OAI收割
Experimental Mechanics, 2009, 卷号: 49, 期号: 5, 页码: 719-729
作者:
Ma D
;
Ong CW
;
Zhang TH(张泰华)
收藏
  |  
浏览/下载:849/98
  |  
提交时间:2009/08/03
Young'S Modulus
Accuracy
Instrumented Indentation
Finite Element Analysis
Berkovich Indenter
Elastic-Modulus
Sensing Indentation
Hardness
Indenter
Load