绳系卫星系绳参数的实时估计方法

Real-time estimation method on tether parameters for tether satellite

摘要:

研究了绳系卫星在轨运动中系绳参数的实时估计方法.分析了现有的估计方法所存在的问题,引入三轴张力计的测量信息和扩展Kalman滤波方法,提出了系绳摆角在大角度变化时系绳参数的实时估计方法,并进行了详细的推导与论证.最后,通过仿真验证了上述估计方案和算法的有效性,且获得了较好的估计精度.

Abstract:

To study the real-time estimation method on tether parameters for orbital motion of tethered satellite system,after analyzing the main problems in current estimation methods,the measurement information of a three-axis tether tensiometer and the extended Kalman filter were introduced,then a real-time estimation method was developed for large-angle change on tether swaying angle.This estimation method was deduced and demonstrated in detail.Finally,the validity of the estimation method was verified by simulation results and a preferable estimation precision was obtained.