Study on Efficient Sensor Node Selection for Observability Gramian Optimization
IFAC PAPERSONLINE(2023)
摘要
This study attempts a practical comparison of optimization methods for sensor node selection to efficiently monitor large-scale dynamical systems represented by linear timeinvariant state space models. Sensor measurements are evaluated based on an observability measure, the matrix determinant of the observability Gramian. This study confirms the applicability of selection strategies, namely, a convex relaxation method using semidefinite programming, a greedy maximization and its approximation that considers the gradient of the observability measure. Examples based on numerical and real-world experiments illustrate the effectiveness of the selection algorithms in terms of their optimization measures and the run time for the selection. Copyright (c) 2023 The Authors.
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关键词
Monitoring,parameter and state estimation,scheduling,coordination,optimization,sensor networks.
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