On the Control Strategies that Humans use to Interact with Linear Systems with Output Nonlinearities
- Resource Type
- Conference
- Authors
- Koushkbaghi, Sajad; Wang, Shaoqian; Seigler, Michael; Hoagg, Jesse
- Source
- 2018 IEEE International Conference on Systems, Man, and Cybernetics (SMC) SMC Systems, Man, and Cybernetics (SMC), 2018 IEEE International Conference on. :3732-3737 Oct, 2018
- Subject
- Components, Circuits, Devices and Systems
Computing and Processing
Power, Energy and Industry Applications
Robotics and Control Systems
Signal Processing and Analysis
Feedforward systems
Linear systems
Transfer functions
Nonlinear dynamical systems
Standards
Control systems
- Language
- ISSN
- 2577-1655
This paper examines the feedforward control strategies that humans use to interact with an unknown nonlinear system. We present results from two different experiments. In the first experiment, 11 human subjects interact with an unknown linear system. In the second experiment, 11 different human subjects interact with the same linear system but with the addition of a static output nonlinearity. We use subsystem identification to identify the feedback and feedforward controllers that model the subjects' control strategies. The identified controllers suggest the subjects use approximate feedforward plant inversion in both experiments. However, plant inversion is less precise for the nonlinear experiment.