ABSTRACT
One of the groups of damage detection algorithms used in nondestructive testing and structural health monitoring is the group of the so-called vibration methods. Apart from its advantages, they have several limitations and faults. First of all, there is a serious problem distinguishing between the changes in parameters resulting from damage and those caused by environmental changes e.g. temperature or humidity. That is especially visible in civil engineering structures monitoring. A further limitation involves difficulties with the automation of procedures. Also the computational cost required by the modal parameters estimation algorithms is rather high, and makes problematic its implementation on the embedded diagnostic systems.
