A non-contact spacecraft architecture with extended stochastic state observer based control for gravity mission

• 来源期刊: 系统工程与电子技术（英文版）
• 年，卷（期）: 2021,（2）
• 所属期刊栏目: CONTROL THEORY AND APPLICATION
• 页码范围: 460-472
• 页数: 13页
• 语种: 英文
• DOI: 10.23919/JSEE.2021.000039

摘要

A novel non-contact spacecraft architecture with the extended stochastic state observer for disturbance rejection control of the gravity satellite is proposed. First, the precise li-near driving non-contact voice-coil actuators are used to sepa-rate the whole spacecraft into the non-contact payload module and the service module, and to build an ideal loop with precise dynamics for disturbance rejection control of the payload mo-dule. Second, an extended stochastic state observer is enve-loped to construct the overall nonlinear external terms and the internal coupled terms of the payload module, enabling the con-troller design of the payload module turned into the linear form with simple bandwidth-parameterization tuning in the frequency do-main. As a result, the disturbance rejection control of the pay-load module can be explicitly achieved in a timely manner without complicated tuning in actual implementation. Finally, an extensive numerical simulation is conducted to validate the fea-sibility and effectiveness of the proposed approach.