Abdennadher, Mohamed AliMohamed AliAbdennadherWilliams Riquer, FranciscoFranciscoWilliams RiquerDao, Duy AnhDuy AnhDaoGrabe, JürgenJürgenGrabe2026-01-212026-01-212025-0610th International Conference on Computational Methods in Structural Dynamics and Earthquake Engineering, COMPDYN 2025https://hdl.handle.net/11420/61035Accurate modeling of structural dynamics is essential for designing effective vibration control strategies in earthquake engineering. Traditional system identification techniques often struggle to distinguish intrinsic structural behavior from external forces, particularly in the presence of measurement noise. Dynamic Mode Decomposition with Control (DMDc) offers a data-driven approach to extracting system dynamics while accounting for external inputs. However, its performance degrades significantly in noisy environments, leading to inaccurate mode identification and misrepresented damping characteristics. To address this challenge, we introduce Augmented Dynamic Mode Decomposition with Control (AugDMDc), a novel extension that incorporates time-delay coordinates into DMDc to enhance noise robustness. By embedding past measurements into the state-space representation, AugDMDc effectively reduces the impact of sensor noise while preserving the ability to separate a structure’s natural response from external excitations. We validate this approach using a structural dynamic system equipped with an Active Mass Damper (AMD), comparing the performance of DMDc and AugDMDc under various conditions.enDynamic Mode Decomposition (DMD)DMD with Control (DMDc)Augmented DMDc (AugDMDc)Measurement Noise RobustnessTime-Delay CoordinatesSystem IdentificationTechnology::690: Building, ConstructionConference Paper10.7712/120125.12830.24480Conference Paper