Signal denoising reconstruction method based on adaptive variational mode decomposition

The invention belongs to a dynamic signal denoising technology, and relates to a modal decomposition and reconstruction method for a dynamic measurement signal. The signal denoising method based on adaptive variational mode decomposition comprises the following five steps: pre-determining the number of layers of signal decomposition, checking the correlation of a mode component, determining a secondary penalty factor, performing variational mode decomposition, and checking and reconstructing a signal. According to the measurement method, an original measurement signal is adaptively decomposed into a plurality of different intrinsic mode function components by using the signal frequency band adaptive separation characteristic of variational mode decomposition, a separation result is checked through parameters such as sample entropy and the like, and extracted effective components are reconstructed into new observation signals so as to realize the separation of environmental noise. The core thought of the measu