中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
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浏览/检索结果: 共7条,第1-7条 帮助

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A Novel Adaptive Noise Covariance Matrix Estimation and Filtering Method: Application to Multiobject Tracking 期刊论文  OAI收割
IEEE TRANSACTIONS ON INTELLIGENT VEHICLES, 2024, 卷号: 9
作者:  
Jiang, Chao;  Wang, Zhiling;  Liang, Huawei;  Wang, Yajun
  |  收藏  |  浏览/下载:8/0  |  提交时间:2024/11/20
RL-AKF: An Adaptive Kalman Filter Navigation Algorithm Based on Reinforcement Learning for Ground Vehicles 期刊论文  OAI收割
REMOTE SENSING, 2020, 卷号: 12, 期号: 11, 页码: 25
作者:  
Gao, Xile;  Luo, Haiyong;  Ning, Bokun;  Zhao, Fang;  Bao, Linfeng
  |  收藏  |  浏览/下载:37/0  |  提交时间:2020/12/10
Automatic Calibration of Process Noise Matrix and Measurement Noise Covariance for Multi-GNSS Precise Point Positioning 期刊论文  OAI收割
MATHEMATICS, 2020, 卷号: 8, 期号: 4, 页码: 20
作者:  
Zhang, Xinggang;  Li, Pan;  Tu, Rui;  Lu, Xiaochun;  Ge, Maorong
  |  收藏  |  浏览/下载:23/0  |  提交时间:2020/09/01
An Adaptive UKF Algorithm for the State and Parameter Estimations of a Mobile Robot 期刊论文  OAI收割
自动化学报, 2008, 卷号: 34, 期号: 1, 页码: 72-79
作者:  
Song Q(宋崎);  Han JD(韩建达)
收藏  |  浏览/下载:18/0  |  提交时间:2012/05/29
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.  
An adaptive UKF algorithm and its application in mobile robot control 会议论文  OAI收割
IEEE International Conference on Robotics and Biomimetics (ROBIO 2006), Kunming, China, December 17-20, 2006
作者:  
Song Q(宋崎);  Qi JT(齐俊桐);  Han JD(韩建达)
收藏  |  浏览/下载:17/0  |  提交时间:2012/06/06
Design of GPS/INS integrated navigation system based on multisensor information fusion (EI CONFERENCE) 会议论文  OAI收割
6th World Congress on Intelligent Control and Automation, WCICA 2006, June 21, 2006 - June 23, 2006, Dalian, China
Chunmei H.; Yantao T.; Wanxin S.; Mao L.
收藏  |  浏览/下载:38/0  |  提交时间:2013/03/25
Two kinds of design methods of GPS/INS integrated navigation system are presented  that is GPS/INS integrative system and integrated navigation system based on information fusion. By analyzing mathematics model of the first system error  we found that inertia velocity error would cause code loop track error. Consequently  the pseudo range meterage error is interrelated with inertia velocity error  which is complex to calculate. If this relativity is ignored in the state equation and observation equation of this system  it must affect the estimated precision of the kalman filter and maybe the system is unstable. Therefore  the second integrated navigation method is introduced. It adopts information fusion  federal kalman filter and covariance. And consider the above pertinence to analyze the navigation performance of the integration system. Then it gives the flow of federal kalman filter algorithm. By analyzing  the conclusion is that velocity error of integrated navigation system drops from 0.5m/s to below 0.05m/s  and improves the precision and reliability of the navigation system effectively  well continuity and real-time capability. It provides an effective way for data analysis and process of fusion navigation system. 2006 IEEE.