In order to eliminate noise and singularities from transient test data

this paper employs spatial correlation of wavelet coefficients to remove noise by features

in which noise-decomposed coefficients using wavelet transform are not correlative at different finest scales

and uses the characteristic of the coefficients through decomposing singularities to eliminate these singularities

that is denoising and deleting singularities in one step using wavelet algorithm.The parameters of a 650 MW turbo-generator a...