Browsing by Author "Cowan, N. J."

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Frequency-domain subspace ıdentification of linear time periodic (LTP) systems

Uyanik, I.; Saranli, U.; Ankaralı, M.; Cowan, N. J.; Morgül, Ömer (Institute of Electrical and Electronics Engineers, 2019)

This note proposes a new methodology for subspace-based state-space identification for linear time-periodic (LTP) systems. Since LTP systems can be lifted to equivalent linear time-invariant (LTI) systems, we first lift ...
Identification of a vertical hopping robot model via harmonic transfer functions

Uyanık, İ.; Ankaralı, M. M.; Cowan, N. J.; Saranlı U.; Morgül, Ö. (Sage Publications Ltd., 2016)

A common approach to understanding and controlling robotic legged locomotion is the construction and analysis of simplified mathematical models that capture essential features of locomotor behaviours. However, the ...
Independent estimation of input and measurement delays for a hybrid vertical spring-mass-damper via harmonic transfer functions

Uyanık, İsmail; Ankaralı, M. M.; Cowan, N. J.; Saranlı, U.; Morgül, Ömer; Özbay, Hitay (IFAC, 2015-06)

System identification of rhythmic locomotor systems is challenging due to the time-varying nature of their dynamics. Even though important aspects of these systems can be captured via explicit mechanics-based models, it ...