Numerical and experimental verification of an inverse‐direct approach for load and strain monitoring in aeronautical structures

On statistical Multi-Objective optimization of sensor networks and optimal detector derivation for structural health monitoring

“…Specifically, each cost parameter in Eq. (24) refers to the following, where the subscript 𝑘 is omitted for brevity:  𝐶 00 is the cost of true negatives, thus the cost of deciding a structure is undamaged when it is really undamaged. It includes costs related to normal operation.…”

“…Some works [18], [19] minimize the norm (trace or determinant) of the Fisher information matrix computed from the modal and measurement covariance matrixes. Others [20]- [24] define sensor networks based on the concept of observability, or the network's ability to infer the state parameters required for performance monitoring, health assessment, and system control. The information may be provided by directly measuring the system parameters or reconstructing unobservable system parameters based on observable ones.…”