VMD-based methods for denoising terahertz signals obtained from biological tissue
Mohamed Boutaayamou, Jacques Verly · 2023
We examine methods for denoising THz signals. The main method is based on the variational mode decomposition (VMD) followed by one of several thresholding techniques. We present some preliminary results for the denoising of a signal obtained from a biological tissue under low-noise condition and to which various amounts of synthetic noise are added. The study shows the potential of VMD-based methods in characterizing biological samples and, in particular, human breast cancer tissue.