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中文摘要：
针对飞网捕获高轨失效卫星后离轨操作过程中非合作目标质量的参数辨识问题，提出了一种基于扩张状念观测器和最小二乘法的参数辨识方法。首先利用扩张状态观测器估计未知的状态量，然后用最小二乘法处胖此估计量，从而求得待估计参数。最后，将该方法与协方差修正最小二乘算法、卡尔曼滤波法等其他参数辨识办法进行仿真比较，仿真结果验证了此参数辨识方法的有效性和鲁棒性。
英文摘要：
For the parameter identification of non-cooperative target mass in the process of deorbit operation after high orbit satellite net capture failure, a parameter estimation method combing the extended state observer with the least square method is presented. Firstly, the unknown state will be estimated by using the extended state observer. Then, the estimated value of non-eooperative target is calculated by applying the least square method. Finally, the simulations are performed and the comparison is made among the proposed method, the covariance correction least-squares algorithm, the Kalmml filtering method and the other methods. The simulation results further demonstrate both effectiveness anti robustness of the proposed method.
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