多刚体卫星转动惯量在轨辨识

惯量辨识需要精确的动力学特性，针对动力学特性不可忽略太阳电池阵转动这一状况，提出一种惯量辨识方法，用于卫星本体惯量和太阳电池阵惯量的联合辨识.在建立多刚体姿态动力学基础上，针对辨识变量的耦合特性，推导带约束的优化辨识模型，再利用约束最小二乘算法求解.最后通过仿真计算验证了辨识方法的可行性.

Identification of Rotary Inertia for Multi-Body Satellite

Accurate dynamics characteristics are important for rotary inertia identification. Considering the effect of solar cell array rotation in dynamics, a method of inertia identification is proposed, which is applied to identify the body inertia and solar cell array inertia simultaneously. Thinking of the coupling between the variables, the optimized identification model with constraint is deduced based on the modeled multi body attitude dynamics. The precise solution is achieved via the algorithm of constraint least squares. Finally, the feasibility of the identification method is verified by simulation and calculation.