Inner-Loop Flight Control

Part of the Advances in Industrial Control book series (AIC)


We propose a three-layer automatic flight control system for our unmanned vehicles based on the time scales of the state variables of the helicopter, which consists of the inner loop, the outer loop, and the flight scheduling layers. The inner loop stabilizes the dynamics of the helicopter associated with its angular velocities and Euler angles. The outer loop controls the position of the unmanned system. Lastly, the outmost layer, i.e., the flight scheduling layer, generates the necessary trajectories for predefined flight missions. Chapter 7 presents the design of the inner-loop control law using an H-infinity control technique based on the linearized model obtained in Chap.  6. More specifically, we focus on issues related to design specification selection, problem formulation, flight control law design, and overall performance evaluation. Design specifications for military rotorcraft set for US army aviation are adopted throughout the whole process to guarantee a top level performance.


State Feedback Attitude Response Wind Gust Crossover Frequency Attitude Hold 
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Copyright information

© Springer-Verlag London Limited 2011

Authors and Affiliations

  1. 1.Temasek LaboratoriesNational University of SingaporeSingaporeSingapore
  2. 2.Dept. Electrical & Computer EngineeringNational University of SingaporeSingaporeSingapore

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