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Angular Velocity Nonlinear Observer From Single Vector Measurements
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DOI：10.1109/TAC.2015.2501358.png)
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摘要
En 中文
The paper proposes a technique to estimate the angular velocity of a rigid body from single vector measurements. Compared to the approaches presented in the literature, it does not use attitude information nor rate gyros as inputs. Instead, vector measurements are directly filtered through a nonlinear observer estimating the angular velocity. Convergence is established using a detailed analysis of a linear-time varying dynamics appearing in the estimation error equation. This equation stems from the classic Euler equations and measurement equations. As is proven, the case of free-rotation allows one to relax the persistence of excitation assumption. Simulation results are provided to illustrate the method.
Keyword:
Guidance navigation and control
nonlinear observer and filter design
sensor and data fusion
time-varying systems
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期刊
IF:
7
论文数:
1.3W
被引数:
6.7W
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