Quasi-bivariate VMD

QBVMD is a quasi-bi-dimentional decompostion tool for 2D data.

QBVMD.m is the function used for quasi-bi-dimentional decompostion of 2D image.When 1D signal is the input, it will invoke the 1D VMD (K. Dragomiretskiy, D. Zosso, 2014). qbvmd_test.m is a test script. Run the qbvmd_test.m to show a Quasi-bi-variate variational decomposition (QBVMD) of a typical PIV realization of turbulent boundary layer.
Please refer to the work for more specific decscription of QBVMD and its application in TBL study.
Wang W, Pan C, Wang J. Quasi-bivariate variational mode decomposition as a tool of scale analysis in wall-bounded turbulence[J]. Experiments in Fluids, 2018, 59(1):1.