Time-frequency phase weighted stacking based on the full stockwell transform can be too costly to compute for large datasets. This pull request adds an additional stacking method (tfpws_fast) based on the discrete orthonormal stockwell transform (DOST), which is essentially a short-time fourier transform with frequency-dependent bandwidth. The DOST implementation is described in [1] and is essentially a python translation of the Matlab implementation in [2].
Time-frequency phase weighted stacking based on the full stockwell transform can be too costly to compute for large datasets. This pull request adds an additional stacking method (tfpws_fast) based on the discrete orthonormal stockwell transform (DOST), which is essentially a short-time fourier transform with frequency-dependent bandwidth. The DOST implementation is described in [1] and is essentially a python translation of the Matlab implementation in [2].