TIME-VARYING STATE-SPACE MODEL IDENTIFICATION OF ONORBIT RIGID-FLEXIBLE COUPLING SPACECRAFT USING A PREDICTOR-BASED RECURSIVE SUBSPACE ALGORITHM | |
Ni ZY(倪智宇)2; Liu JG(刘金国)2; Wu SN(邬树楠)1; Wu ZG(吴志刚)1 | |
2018 | |
会议日期 | May 21-23, 2018 |
会议地点 | Changsha, China |
页码 | 981-994 |
英文摘要 | This paper focuses on the recursive identification of the time-varying state-space model of the on-orbit rigid-flexible coupling spacecraft caused by structural configuration change, and a recursive predictor-based subspace identification (RPBSID) method is applied to implement the online identification of the system model recursively. Comparing with the classical subspace algorithms such as the time-varying eigensystem realization algorithm (TV-ERA), the RPBSID method does not need to construct the corresponding Hankel matrix for each time instant when solving the state variables, and thereby reducing the amounts of data in the identification process. Furthermore, an adaptive filter is applied in this recursive algorithm and thus the ability of noise resistance is also increased. In numerical simulations, the time-varying state-space model of the spacecraft is estimated by using the RPBSID and TV-ERA approaches, and the system responses with respect to the test inputs for the two methods are also compared. The computed results of the test responses illustrate that the RPBSID algorithm can be used to effectively identify the time-varying state-space model parameters of the rigid-flexible coupling spacecraft, and the corresponding computational efficiency of the algorithm is also better than that of the classical identification method. |
源文献作者 | American Astronautical Society (AAS) ; Hunan Society of Astronautics |
产权排序 | 1 |
会议录 | 4th IAA Conference on Dynamics and Control of Space Systems (DYCOSS 2018) |
会议录出版者 | IAA |
会议录出版地 | Paris, France |
语种 | 英语 |
ISSN号 | 1081-6003 |
ISBN号 | 978-0-87703-653-1 |
WOS记录号 | WOS:000482843500076 |
内容类型 | 会议论文 |
源URL | [http://ir.sia.cn/handle/173321/23798] |
专题 | 沈阳自动化研究所_空间自动化技术研究室 |
通讯作者 | Ni ZY(倪智宇) |
作者单位 | 1.School of Aeronautics and Astronautics, Dalian University of Technology, Dalian, Liaoning, 116024, China 2.Center for Space Automation Technology & Systems, Shenyang Institute of Automation, Chinese, Academy of Sciences, Shenyang, Liaoning, 110016, China |
推荐引用方式 GB/T 7714 | Ni ZY,Liu JG,Wu SN,et al. TIME-VARYING STATE-SPACE MODEL IDENTIFICATION OF ONORBIT RIGID-FLEXIBLE COUPLING SPACECRAFT USING A PREDICTOR-BASED RECURSIVE SUBSPACE ALGORITHM[C]. 见:. Changsha, China. May 21-23, 2018. |
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