Figure4
![GPI observer-based active disturbance rejection control for a morphing quadrotor](https://image.oaes.cc/050b2d2f-8841-4839-85ec-62b0ce4e3296/ir3018-4.jpg)
Figure 4. Simulation results of the internal dynamic change estimation. The actual internal dynamic change (black solid lines), the internal dynamic change estimated by a GPI observer (red solid lines), and the internal dynamic change estimated by an ESO (blue dashed lines).