| Application of Unscented Kalman Filter in Satellite Orbit Simulation |
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| 作者姓名： | ZHAO Dongming CAI Zhiwu |
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| 作者单位： | [1]School of Geodesy and Geomatics, Wuhan University, 129 Luoyu Road, Wuhan 430079, China; [2]Surveying and Mapping Institute,Information Engineering University,66 Middle Longhai Road,Zhengzhou450052,China [3]不详,Information Engineering University,66 Middle Longhai Road,Zhengzhou450052,China |
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| 基金项目： | 国家自然科学基金，The DGLIGG，The College Foundation of Surveying and Mapping Institute |
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| 摘 要： | IntroductionAs is well known,the Kal manfilter(KF) is al-ways usedto deal withthe system whose dynam-ics and observation models are linear , and theextended Kal manfilter(EKF) is the most widelyused esti mator for nonlinear systems . In theEKFthe kal man …
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| 关 键 词： | 轨道模拟 卡尔曼滤波器 卫星大地测量 非线性系统 |
| 收稿时间： | 2006-09-21 |
Application of unscented Kalman filter in satellite orbit simulation |
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| ZHAO Dongming CAI Zhiwu.Application of Unscented Kalman Filter in Satellite Orbit Simulation[J].Geo-Spatial Information Science,2006,9(4):269-272. |
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| Authors: | Zhao Dongming Ph D Cai Zhiwu |
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| Institution: | ZHAO Dongming CAI Zhiwu |
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| Abstract: | A new estimate method is proposed, which takes advantage of the unscented transform method, thus the true mean and covariance are approximated more accurately. The new method can be applied to non-linear systems without the linearization process necessary for the EKF, and it does not demand a Gaussian distribution of noise and what's more, its ease of implementation and more accurate estimation features enables it to demonstrate its good performance in the experiment of satellite orbit simulation. Numerical experiments show that the application of the unscented Kalman filter is more effective than the EKF. |
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| Keywords: | EKF unscented transform unscented Kalman filter (UKF) orbit simulation |
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