Aircraft navigation based on differentiation-integration observer
For control systems in aerospace, this observer offers a unified method for signal estimation, but the contribution is incremental as it extends existing observer designs.
The paper presents a generalized differentiation-integration observer that simultaneously estimates multiple integrals and high-order derivatives of a signal, and demonstrates its effectiveness in estimating attitude angles and uncertainties for quadrotor aircraft control, validated through numerical simulations.
In this paper, a generalized differentiation-integration observer is presented based on sensors selection. The proposed differentiation-integration observer can estimate the multiple integrals and high-order derivatives of a signal, synchronously. The parameters selection rules are presented for the differentiation-integration observer. The theoretical results are confirmed by the frequency-domain analysis. The effectiveness of the proposed observer are verified through the numerical simulations on a quadrotor aircraft: i) through the differentiation-integration observer, the attitude angle and the uncertainties in attitude dynamics are estimated synchronously from the measurements of angular velocity; ii) a control law is designed based on the observers to drive the aircraft to track a reference trajectory.