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基于小波的反作用轮力矩测量系统校准

林夏 白涛 武国强 熊淑杰 林宝军

林夏, 白涛, 武国强, 等 . 基于小波的反作用轮力矩测量系统校准[J]. 北京航空航天大学学报, 2017, 43(1): 200-206. doi: 10.13700/j.bh.1001-5965.2016.0054
引用本文: 林夏, 白涛, 武国强, 等 . 基于小波的反作用轮力矩测量系统校准[J]. 北京航空航天大学学报, 2017, 43(1): 200-206. doi: 10.13700/j.bh.1001-5965.2016.0054
LIN Xia, BAI Tao, WU Guoqiang, et al. Calibration of reaction wheel torque measuring system based on wavelet methods[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(1): 200-206. doi: 10.13700/j.bh.1001-5965.2016.0054(in Chinese)
Citation: LIN Xia, BAI Tao, WU Guoqiang, et al. Calibration of reaction wheel torque measuring system based on wavelet methods[J]. Journal of Beijing University of Aeronautics and Astronautics, 2017, 43(1): 200-206. doi: 10.13700/j.bh.1001-5965.2016.0054(in Chinese)

基于小波的反作用轮力矩测量系统校准

doi: 10.13700/j.bh.1001-5965.2016.0054
基金项目: 

国防基础科研项目 0301030104

详细信息
    作者简介:

    林夏,男,硕士研究生。主要研究方向:卫星姿态控制

    通讯作者:

    林宝军,男,博士,研究员。主要研究方向:计算机应用技术、空间飞行器总体设计. E-mail:linbaojun@aoe.ac.cn

  • 中图分类号: TP206+.1

Calibration of reaction wheel torque measuring system based on wavelet methods

Funds: 

National Defense Basic Research Program 0301030104

More Information
  • 摘要:

    将反作用轮实时输出力矩值由力矩测量系统采集引入卫星半物理闭环仿真试验是一种更为优越的闭环仿真新方法。但由于仿真过程中,存在持续的外力矩干扰引入仿真控制闭环,导致半物理仿真试验无法长时间准确运行。为解决这一问题,结合实验数据分析,确定了力矩测量系统为半物理仿真试验外力矩干扰来源,并结合小波阈值滤波原理分别使用实时小波滤波方法和基于小波去噪的均值滤波算法对力矩测量系统初始及过程中产生的外力矩干扰进行消除,使测量系统得以准确校准。最后,将此方法应用于半物理闭环仿真试验中,取得了良好的效果。

     

  • 图 1  典型过往仿真中外力矩引入

    Figure 1.  Typical external torque introduction in previous simulations

    图 2  典型过往仿真反作用轮轮速

    Figure 2.  Typical reaction wheels’ speed in previous simulations

    图 3  力矩测量系统输出偏差

    Figure 3.  Output deviations in torque measuring system

    图 4  力矩测量系统初始上电误差

    Figure 4.  Initial power-up errors in torque measuring system

    图 5  小波初始校准外力矩引入

    Figure 5.  External torque introduction based onwavelet initial calibration

    图 6  小波初始校准反作用轮转速

    Figure 6.  Reaction wheels’ speed based on wavelet initial calibration

    图 7  基于小波去噪的移动平均滤波法外力矩引入

    Figure 7.  External torque introduction based on moving averagefiltering method incorporated with wavelet de-noising

    图 8  基于小波去噪的移动平均滤波法反作用轮转速

    Figure 8.  Reaction wheels’ speed based on moving averagefiltering method incorporated with wavelet de-noising

    图 9  半物理仿真试验外力矩引入

    Figure 9.  External torque introduction in semi-physical simulation experiment

    图 10  半物理仿真试验反作用轮转速

    Figure 10.  Reaction wheels’ speed in semi-physicalsimulation experiment

    图 11  半物理仿真试验卫星姿态

    Figure 11.  Satellite attitude in semi-physical simulation

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出版历程
  • 收稿日期:  2016-01-15
  • 录用日期:  2016-02-06
  • 刊出日期:  2017-01-20

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