Signal denoising method based on WOA-VMD algorithm

The invention discloses a signal denoising method based on a WOA-VMD algorithm, and the method specifically comprises the steps of building mathematic models for target surrounding, foaming net attacking and prey searching according to a whale optimization algorithm, carrying out the parameter initialization, initializing the position vector of a whale in a value range, carrying out the VMD decomposition of an original vibration signal according to the position vector, and then calculating the average envelope entropy under each whale position; updating the minimum average envelope entropy toobtain the position of the optimal individual in the current group and update the spatial position of the current whale group individual; outputting a position vector of the optimal whale individual to obtain a decomposition parameter combination of the VMD; and performing VMD decomposition on the signal according to the obtained decomposition parameter combination, and adding decomposed IMF components to obtain a reconst