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Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共20条,第1-10条 帮助

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The factors impacting the use of navigation systems: A study based on the technology acceptance model 期刊论文  OAI收割
Transportation Research Part F: Traffic Psychology and Behaviour, 2023, 期号: 93, 页码: 106-117
作者:  
Ge, Yan;  Huizi Qi;  Weina Qu
  |  收藏  |  浏览/下载:35/0  |  提交时间:2023/01/30
Editorial: Twenty Years After Implicit Association Test: The Role of Implicit Social Cognition in Human Behavior 期刊论文  OAI收割
FRONTIERS IN PSYCHOLOGY, 2022, 卷号: 13, 页码: 2
作者:  
Jin, Zheng;  Shiomura, Kimihiro;  Bermeitinger, Christina;  Zhu, Xiangru;  De Paula Couto, Maria Clara P.
  |  收藏  |  浏览/下载:40/0  |  提交时间:2022/07/18
Effects of the attitude of dominant joints on the mobility of translational landslides 期刊论文  OAI收割
LANDSLIDES, 2021, 页码: 16
作者:  
Sun, Juanjuan;  Wang, Xueliang;  Liu, Haiyang;  Yuan, Honghu
  |  收藏  |  浏览/下载:59/0  |  提交时间:2021/10/19
Optimal Attitude Sensor Placement and Modal Frequency Identification of Large Space Structure 会议论文  OAI收割
Shanghai, China, July 26-28, 2021
作者:  
Ni ZY(倪智宇);  Wu CC(吴晨晨);  Wu SN(邬树楠);  Zhang, Yuhang
  |  收藏  |  浏览/下载:49/0  |  提交时间:2021/10/30
Toward improving indoor magnetic field-based positioning system using pedestrian motion models 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2018, 卷号: 14, 期号: 9, 页码: 20
作者:  
Luo, Haiyong;  Shao, Wenhua;  Zhao, Fang;  Crivello, Antonino
  |  收藏  |  浏览/下载:29/0  |  提交时间:2019/08/16
Light positioning: A high-accuracy visible light indoor positioning system based on attitude identification and propagation model 期刊论文  OAI收割
INTERNATIONAL JOURNAL OF DISTRIBUTED SENSOR NETWORKS, 2018, 卷号: 14, 期号: 2, 页码: 14
作者:  
Wang, Qu;  Luo, Haiyong;  Men, Aidong;  Zhao, Fang;  Gao, Xile
  |  收藏  |  浏览/下载:43/0  |  提交时间:2019/12/10
Robust parameter estimation from point cloud data with noises for augmented reality 会议论文  OAI收割
36th Chinese Control Conference, CCC 2017, Dalian, China, July 26-28, 2017
作者:  
Zhang TH(张天浩);  Wei YZ(魏英姿);  Shi, Zhengjin;  Gu KF(谷侃锋)
  |  收藏  |  浏览/下载:21/0  |  提交时间:2017/11/15
A 3-axis simulator for spacecraft attitude control research (EI CONFERENCE) 会议论文  OAI收割
2010 IEEE International Conference on Information and Automation, ICIA 2010, June 20, 2010 - June 23, 2010, Harbin, Heilongjiang, China
作者:  
Dai L.
收藏  |  浏览/下载:30/0  |  提交时间:2013/03/25
This article presents the details of a new 3-axis simulator for spacecraft attitude control research and simulation. The air bearing allows the test bed to rotate about three axes with tiny friction. The attitude determination system consists of three fibre optical gyros  an inclinometer and a magnetometer. The actuator of the system consists of three reaction flywheels and four control moment gyros (CMG). Mathematical models of the sensors and actuators are given to help algorithm design. An extended Kalman filter was designed to provide attitude information for controller. Mathematical simulation results prove the attitude determination system can achieve high precision. A coulomb friction model of reaction wheels is given with experimental results. A friction compensation algorithm was developed to raise the pointing accuracy of the control system. The article also describes the details of the hardware structure. A PD stabilizing controller is implemented to test the validation of the whole control system at last. 2010 IEEE.  
Design of ground-based physical simulation system for satellite-borne TDI-CCD dynamic imaging (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Zhang L.;  Zhang L.;  Sun Z.
收藏  |  浏览/下载:24/0  |  提交时间:2013/03/25
As we know  the existence of image motion has a bad effect on the image quality of satellite-borne TDI CCD camera. Although many theories on image motion are proposed to cope with this problem  few simulations are done to justify the proposed theories on ground. And thus  in this paper  a ground-based physical simulation system for TDI CCD imaging is developed and specified  which consists of a physical simulation subsystem for precise satellite attitude control based on a 3-axis air bearing table  and an imaging and simulation subsystem utilizing area-array CCD to simulate TDI CCD. The designed system could realize not only a precise simulation of satellite attitude control  whose point accuracy is above 0.1 and steady accuracy above 0.01/s  but also an imaging simulation of 16-stage TDI CCD with 0.1s its integration time. This paper also gives a mathematical model of image motion of this system analogous with satellite-borne TDI CCD  and detailed descriptions on the principle utilizing area-array CCD to simulate TDI CCD. It is shown that experiment results are in accordance with mathematical simulation  and that the image quality deteriorate seriously when the correspondence between the image velocity and signal charges transfer velocity is broken out  which suggest not only the validity of the system design but also the validity of the proposed image motion theory of TDI CCD. 2010 SPIE.  
Earth elevation map production and high resolution sensing camera imaging analysis (EI CONFERENCE) 会议论文  OAI收割
Optoelectronic Imaging and Multimedia Technology, October 18, 2010 - October 20, 2010, Beijing, China
作者:  
Dai L.
收藏  |  浏览/下载:140/0  |  提交时间:2013/03/25
The Earth's digital elevation which impacts space camera imaging has prepared and imaging has analysed. Based on matching error that TDI CCD integral series request of the speed of image motion  statistical experimental methods-Monte Carlo method is used to calculate the distribution histogram of Earth's elevation in image motion compensated model which includes satellite attitude changes  orbital angular rate changes  latitude  longitude and the orbital inclination changes. And then  elevation information of the earth's surface from SRTM is read. Earth elevation map which produced for aerospace electronic cameras is compressed and spliced. It can get elevation data from flash according to the shooting point of latitude and longitude. If elevation data between two data  the ways of searching data uses linear interpolation. Linear interpolation can better meet the rugged mountains and hills changing requests. At last  the deviant framework and camera controller are used to test the character of deviant angle errors  TDI CCD camera simulation system with the material point corresponding to imaging point model is used to analyze the imaging's MTF and mutual correlation similarity measure  simulation system use adding cumulation which TDI CCD imaging exceeded the corresponding pixel horizontal and vertical offset to simulate camera imaging when stability of satellite attitude changes. This process is practicality. It can effectively control the camera memory space  and meet a very good precision TDI CCD camera in the request matches the speed of image motion and imaging. 2010 SPIE.