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	Sentinel-6A attitude modeling with dual GNSS antennas and its impact on precise orbit determination 期刊论文 OAI收割 GPS Solutions, 2023, 卷号: 27, 期号: 1 作者: Jin B(金彪); Chen, Shanshan; Li, Min; Yue, Fuzhan; Zhao, Liqian \| 收藏 \| 浏览/下载：52/0 \| 提交时间：2022/10/31 Sentinel 6A GPS/Galileo Precise orbit determination Attitude modeling Dual antennas
	A star identification algorithm based on radial and dynamic cyclic features of star pattern 期刊论文 OAI收割 ADVANCES IN SPACE RESEARCH, 2019, 卷号: 63, 期号: 7, 页码: 2245-2259 作者: Wei, Xin; Wen, Desheng; Song, Zongxi; Xi, Jiangbo; Zhang, Weikang \| 收藏 \| 浏览/下载：103/0 \| 提交时间：2019/04/29 Star identification Star sensor Star tracker Dynamic cyclic pattern Chain part extension Attitude determination
	Star Identification Algorithm Based on Oriented Singular Value Feature and Reliability Evaluation Method 期刊论文 OAI收割 TRANSACTIONS OF THE JAPAN SOCIETY FOR AERONAUTICAL AND SPACE SCIENCES, 2019, 卷号: 62, 期号: 5, 页码: 265-274 作者: Wei, Xin; Wen, Desheng; Song, Zongxi; Xi, Jiangbo \| 收藏 \| 浏览/下载：84/0 \| 提交时间：2019/09/23 Star Identification Star Sensor Spacecraft Attitude Determination
	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.
	Research on station mode for attitude determination of multiple targets (EI CONFERENCE) 会议论文 OAI收割 2010 International Conference on Computational and Information Sciences, ICCIS2010, December 17, 2010 - December 19, 2010, Chengdu, Sichuan, China 作者: Zhao L.; Wang J.; Li M. 收藏 \| 浏览/下载：38/0 \| 提交时间：2013/03/25 A key problem of attitude determination system is how to locate CMOS cameras and deal with relations among them. In this paper several kinds of multi-CMOS station mode are introduced. Fundamental principles and classification of station mode directly affect on measurement parameters of system. No matter what mode is designed the ultimate goal is to extend Effective Viewing Field (EVF) increase capture ratio of objects and increase measurement precision. Station mode introduced in this paper is made of CMOS cameras because of low cost high speed frame frequency and low power consumption CMOS cameras were putted near from object tested. So sequences of image are legible which are convenient for analysis of three dimensional(3D) attitude. 2010 IEEE.
	基于惯性和视觉传感器的刚体运动估计学位论文 OAI收割工学博士, 中国科学院自动化研究所: 中国科学院研究生院, 2009 作者: 杨克虎收藏 \| 浏览/下载：93/0 \| 提交时间：2015/09/02 MEMS惯性传感器单目视觉传感器标定刚体运动估计姿态估计四元数卡尔曼滤波 MEMS Inertial Sensor Monocular Vision Sensor Calibration Rigid Motion Estimation Attitude Determination Quaternion Kalman Filter
	Application of CMOS APS star tracker with large FOV in attitude and angular velocity determination (EI CONFERENCE) 会议论文 OAI收割 Advanced Sensor Systems and Applications III, November 12, 2007 - November 14, 2007, Beijing, China Lu D.; Guang J.; Shaoju W.; Tao C. 收藏 \| 浏览/下载：30/0 \| 提交时间：2013/03/25 The paper deals with the spacecraft attitude determination problem using a new kind of star tracker with large FOV based on CMOS APS. Star tracker has been developed since 1970s and proved to be the most accurate sensor ever used in the spacecraft attitude determination systems. But the traditional CCD star tracker also has some disadvantages such as small FOV high power consumption low sample rate and low working angular rate limit which prevent the use of CCD star tracker in attitude large angle maneuvering process. The new kind of star tracker based on CMOS APS has no such disadvantages and is more applicable on modern low-cost agile small satellites. Its higher sample rate and working angular rate limit over traditional CCD star tracker make it more adapt for spacecraft angular velocity determination. Because of the large FOV of the star tracker the mathematical model of traditional CCD star tracker with a small FOV is not appropriate. So a new mathematical model was quoted to fit the star tracker with a large FOV. An alternative adaptive algorithm was also introduced in the paper. It can help the EKF algorithm work lacking of accurate covariance of the observation noise. An optimal estimation algorithm was used to estimate the angular velocity directly from the star tracker measurements. Mathematic simulation results indicate the CMOS APS star tracker can give accurate attitude information and estimated angular rate. The method can be used as the chief attitude determination system design of low-cost satellite without gyros or be used as a backup strategy in the event of gyro failures to enhance the reliability of the attitude determination system.
	A method of autonomous orbit determination for satellite using star sensor 期刊论文 OAI收割 SCIENCE IN CHINA SERIES G-PHYSICS MECHANICS & ASTRONOMY, 2005, 卷号: 48, 期号: 3, 页码: 268-281 作者: Ma, JB; Xu, J; Cao, ZB 收藏 \| 浏览/下载：23/0 \| 提交时间：2012/03/07 autonomous orbit determination of satellite star sensor attitude of satellite
	CMOS APS imaging system application in star tracker (EI CONFERENCE) 会议论文 OAI收割 Advanced Materials and Devices for Sensing and Imaging II, November 8, 2004 - November 10, 2004, Beijing, China 作者: Li J.; Liu Y.; Liu Y.; Liu Y.; Liu J. 收藏 \| 浏览/下载：58/0 \| 提交时间：2013/03/25 Small satellites are capable of performing space explore missions that require accurate attitude determination and control. However low weight size power and cost requirements limit the types of attitude sensor of small craft such as CCD are not practical for small satellites. CMOS APS is a good substitute for attitude sensors of small craft. Some of the technical advantages of CMOS APS are no blooming single power low power consumption small size and little support circuitry direct digital output simple to system design in particular radiation-hard characteristic compare with CCD. This paper discusses the application probability of CMOS APS in star tracker for small satellites further more a prototype ground-based star camera based on STAR250 CMOS image sensor has been built. In order to extract stars positions coordinates subpixel accuracy centroiding algorithm has been developed and tested on some ground-based images. Moreover the camera system star sensitivity and noise model are analyzed and the system accuracy is been evaluated. Experimental results indicate that a star camera based on CMOS APS is a viable practical attitude sensor appropriate for space small satellites.