System Identification Modeling for Flight Control Design

Flight control analyses require accurate models of the bare airframe and its associated uncertainties, as well as the integrated system (block diagrams) across the frequency range of interest. Frequency domain system identification methods have proven to efficiently fulfill these requirements in recent rotorcraft flight control applications. This paper presents integrated system identification methods for flight control modeling for flight test examples of the Fire Scout MQ-8B, S-76, and ARH-70A. The paper also looks toward how system identification could be used in new modeling challenges such as the Joint Heavy Lift rotorcraft as well as small unique unmanned configurations.

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