“…In general, POD has been used to obtain approximate, low-dimensional descriptions of turbulent fluid flow (Holmes et al, 1996), structural vibrations (Cusumano et al, 1994;Feeny and Kappagantu, 1998), and damage detection (Ruotolo and Surace, 1999), and is a very useful technique in signal processing, pattern recognition, and image compression (Chatterjee, 2000). Generally speaking, SVD is used to decompose a set of data, like a matrix, into orthonormal basis functions whereby an approximation of that data set can be reconstructed using a finite number of these basis functions.…”