Design of an FIR filter for the displacement reconstruction using measured acceleration in low‐frequency dominant structures

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Reference‐free structural dynamic displacement estimation method (2018, methodology): “A different approach in the literature is to propose a minimization problem of the L2‐norm of the difference of the acceleration and the second derivative of the displacement with Tikhonov regularization.(12,13) The problem can be solved through discretization in the time domain using finite differe”
Wireless displacement sensing system for bridges using multi-sensor fusion (2014, methodology): “For example, displacement obtained by double-integrating acceleration responses suffers from significantly large low-frequency drift errors, and applying a high-pass filter to remove the drift errors removes true lowfrequency components in the displacement [15].”