Multi-resolution radio image reconstruction using the wavelet transform

China Solar Radio Interferometer Array (CSRIA) will observe the SUN over a wide range of radio frequencies and make high spatial resolution images at many frequencies nearly simultaneously. A complete exploitation of the imaging properties of CSRIA will require an effective method to reconstruct the original image. This paper shows how multiresolution analysis and noise removal strategy with the help of wavelet transforms can be incorporated into multi-resolution image reconstruction for aperture synthesis. The method has been used to clean the dirty map generated by CSRIA, and the results testify that the method is effective and prospective.