Solution of large dense complex matrix equations utilizing wavelet-like transforms
Tapan K. Sarkar, Kyungjung Kim · IEEE Transactions on Antennas and Propagation · 1999
This paper presents the wavelet-like transforms, which are quite different from the wavelet transform for the solution of large dense complex matrix equations. From a purely numerical standpoint, these wavelet-like transforms are not true orthogonal transforms as the condition number of the resulting matrix changes after the thresholding. These effects are illustrated through examples.