Abstract: An inverse blackbody radiation problem is discreted to a linear ill-posed system.A wavelet transform method is proposed for solution of the problem.With a combination of wavelet transformation and regularization method we convert the ill-posed problem into a posed problem in coarse space,which takes full advantage of compact support of wavelet.Numerical results show feasibility and robust reconstruction of the method.

Key words: blackbody radiation, inverse problem, ill-posed problem, wavelet transform