Compare of the performance between the improved discrete S transform fast algorithm and CWT
Yanhua Wu · Signal Processing · 2012
Due to its excellent time-frequency combination properties,S transform has got great attention in the field of signal processing and has great applying prospect in the field of communication signals' reconnaissance.Based on the study of basic principles of S transform,the commonly used algorithm of discrete S transform and its disadvantages are analyzed in this paper.The improved discrete S transform fast algorithm is proposed to reduce the computation of discrete S transform as well as achieve the fast discrete S transform operations.To examine and certify the effectiveness of the proposed algorithm,the simulation and the compare of the performance among the improved discrete S transform,the traditional discrete S transform and CWT are preceded.The result shows that the amount calculation of the improved discrete S transform fast algorithm is less one or more orders of magnitude than the traditional discrete S transform and CWT.Simulation and performance analysis proved the effectiveness to improve algorithm of discrete S transform.The improved algorithm has great significance to the engineering of the communication signal's fast reconnaissance.