Acoustic signal de-noising based on parallel sparse decomposition

The sparse decomposition is pulled in to the de-noising in acoustic target recognition in this paper.Moreover,in order to overcome the deficiency of the computational burden and large time consuming,a parallel algorithm is put forward to take advantage of multi-core platforms of modern computer.We break down the decomposition into multiple local tasks according to the characteristic of acoustic signal while avoiding blocking effects.Experimental results show that the sparse decomposition de-noising can achieve significant advancement while the parallel MP algorithm reduces the time consuming,which make it possible to use sparse decomposition in real-time acoustic targets recognition system.