Estimation of kinetic parameters of composite materials during the cure process by using wavelet transform and mollification method

In some inverse problem, the convergence of the inverse algorithm is impossible due to the correlation of the involving parameters. Several different approaches have been used to address this problem. This paper proposes a procedure to smooth the temperature data by wavelet transform and mollification method prior to utilizing the Levenberg–Marquart method. Comparison of the two filtering methods shows that a comparable improvement in performance can be achieved specially using the mollification method. In order to examine this technique, a highly ill-posed problem was considered as a test case; that is the estimation of the composite kinetic parameters during the cure process.