Seismic wavefield reconstruction based on compressed sensing using data-driven reduced-order model

T Nagata, K Nakai, K Yamada, Y Saito… - Geophysical Journal …, 2023 - academic.oup.com
Reconstruction of the distribution of ground motion due to an earthquake is one of the key
technologies for the prediction of seismic damage to infrastructure. Particularly, the …

Sensor selection by greedy method for linear dynamical systems: Comparative study on Fisher-information-matrix, observability-Gramian and Kalman-filter-based …

S Takahashi, Y Sasaki, T Nagata, K Yamada… - IEEE …, 2023 - ieeexplore.ieee.org
Objective functions for sensor selection are investigated in linear time-invariant systems with
a large number of sensor candidates. This study compared the performance of sensor sets …

Proof-of-concept study of sparse processing particle image velocimetry for real time flow observation

N Kanda, C Abe, S Goto, K Yamada, K Nakai… - Experiments in …, 2022 - Springer
In this paper, we overview, evaluate, and demonstrate the sparse processing particle image
velocimetry (SPPIV) as a real-time flow field estimation method using the particle image …

Efficient sensor node selection for observability Gramian optimization

K Yamada, Y Sasaki, T Nagata, K Nakai, D Tsubakino… - Sensors, 2023 - mdpi.com
Optimization approaches that determine sensitive sensor nodes in a large-scale, linear time-
invariant, and discrete-time dynamical system are examined under the assumption of …

Optimization of sparse sensor placement for estimation of wind direction and surface pressure distribution using time-averaged pressure-sensitive paint data on …

R Inoba, K Uchida, Y Iwasaki, T Nagata… - Journal of Wind …, 2022 - Elsevier
This study proposes a method for predicting the wind direction against the simple
automobile model (Ahmed model) and the surface pressure distributions on it by using data …

Nondominated-solution-based multi-objective greedy sensor selection for optimal design of experiments

K Nakai, Y Sasaki, T Nagata, K Yamada… - IEEE Transactions …, 2022 - ieeexplore.ieee.org
In this study, a nondominated-solution-based multi-objective greedy method is proposed
and applied to a sensor selection problem based on the multiple indices of the optimal …

Randomized group-greedy method for large-scale sensor selection problems

T Nagata, K Yamada, K Nakai, Y Saito… - IEEE Sensors …, 2023 - ieeexplore.ieee.org
The randomized group-greedy (RGG) method and its customized method for large-scale
sensor selection problems are proposed. The randomized greedy sensor selection …

Simultaneous measurement of pressure and temperature on the same surface by sensitive paints using the sensor selection method

N Tiwari, K Uchida, R Inoba, Y Saito, K Asai… - Experiments in …, 2022 - Springer
A novel measurement method is developed for a simultaneous measurement of pressure
and temperature on an airfoil by sensitive paints. The proposed method requires two sets of …

Greedy sensor selection for weighted linear least squares estimation under correlated noise

K Yamada, Y Saito, T Nonomura, K Asai - IEEE Access, 2022 - ieeexplore.ieee.org
Optimization of sensor selection has been studied to monitor complex and large-scale
systems with data-driven linear reduced-order modeling. An algorithm for greedy sensor …

[PDF][PDF] Data-Driven Determinant-Based Greedy Under/Oversampling Vector Sensor Placement.

Y Saito, K Yamada, N Kanda, K Nakai… - … in Engineering & …, 2021 - researchgate.net
ABSTRACT A vector-measurement-sensor-selection problem in the undersampled and
oversampled cases is considered by extending the previous novel approaches: a greedy …