| 跟踪弹道导弹时预警卫星姿态前馈协同控制 |
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| 引用本文： | 张世杰,曹喜滨.跟踪弹道导弹时预警卫星姿态前馈协同控制[J].飞行力学,2004,22(3):57-60. |
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| 作者姓名： | 张世杰 曹喜滨 |
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| 作者单位： | 哈尔滨工业大学,卫星工程技术研究所,黑龙江,哈尔滨,150001 |
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| 基金项目： | 国防"十五"预研基金资助项目(413200202) |
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| 摘 要： | 基于角动量守恒定理,推导了跟踪弹道导弹时,具有活动部件的预警卫星姿态前馈协同控制。该控制算法基于角动量守恒方程估计红外相机运动产生的角动量扰动以及为抑制该扰动所需的期望飞轮转速,将期望飞轮转速与实际转速的偏差作为前馈信号加入到传统控制系统中,推导出预警卫星姿态前馈控制模型。最后通过数值仿真验证了控制方法,仿真结果与理论分析具有很好的一致性。并且该控制方法简单、可靠,能够适应卫星在轨实时控制。
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| 关 键 词： | 预警卫星 姿态控制 前馈 活动部件 扰动 |
| 文章编号： | 1002-0853(2004)03-0057-04 |
| 修稿时间： | 2003年7月18日 |
Coordinated Attitude Control for an Early-Warning Satellite Tracking the Ballistic Missile |
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| ZHANG Shi-jie,CAO Xi-bin.Coordinated Attitude Control for an Early-Warning Satellite Tracking the Ballistic Missile[J].Flight Dynamics,2004,22(3):57-60. |
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| Authors: | ZHANG Shi-jie CAO Xi-bin |
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| Abstract: | In this paper, coordinated attitude control law for an early-warning satellite with mobile sensors is proposed based on the conservation of angular momentum. The proposed controller first estimates the angular momentum produced by the mobile infrared sensor and the desired speeds of reaction wheel which compensate the disturbance due to sensor's motion. Then, the errors of wheels' speed are added to the conventional control law as a feedforward signal. In the last, the proposed controller is demonstrated using mathematical simulation, and simulation results coincide well with analytical results. |
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| Keywords: | early-warning satellite attitude control feedforward mobile bodies disturbance |
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