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A Modified Rodrigues Parameter-based Nonlinear Observer Design for Spacecraft Gyroscope Parameters Estimation

机译:改进的基于罗德里格斯参数的非线性观测器设计,用于航天器陀螺仪参数估计

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摘要

This paper presents a modified Rodrigues parameter (MRP)-based nonlinear observer design to estimate bias, scale factor and misalignment of gyroscope measurements. A Lyapunov stability analysis is carried out for the nonlinear observer. Simulation is performed and results are presented illustrating the performance of the proposed nonlinear observer under the condition of persistent excitation maneuver. In addition, a comparison between the nonlinear observer and alignment Kalman filter (AKF) is made to highlight favorable features of the nonlinear observer.
机译:本文提出了一种改进的基于Rodrigues参数(MRP)的非线性观测器设计,以估计陀螺仪测量值的偏差,比例因子和失准。对非线性观测器进行了Lyapunov稳定性分析。进行了仿真,并给出了结果,说明了所提出的非线性观测器在持续激励操纵条件下的性能。另外,对非线性观测器和对准卡尔曼滤波器(AKF)进行了比较,以突出非线性观测器的有利功能。

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