This paper is understood as a supplement to the paper by Stutzki et al. 199
8, where we have shown the usefulness of the Allan-variance and its higher
dimensional generalization, the Delta-variance, for the characterization of
molecular cloud structures. In this study we present the connection betwee
n the Allan- and Delta-variance and a more popular structure analysis tool:
the wavelet transform. We show that the Allan- and Delta-variances are the
variances of wavelet transform coefficients.