whenxuan: create the gdmd and unittest

Author: wwhenxuan

pysdkit/__init__.py

@@ -49,6 +49,9 @@
 # Swarm Decomposition
 from ._osd import SWD, swd
 
+# Generalized Dispersion Mode Decomposition
+from ._gdmd import GDMD, gdmd
+
 # Variational Mode Decomposition
 from ._vmd import vmd, VMD
 
@@ -157,6 +160,7 @@ def print_functions():
 Robust Local Mean Decomposition                 |    RLMD
 Singular Spectral Analysis                      |    SSA
 Swarm Decomposition                             |    SWD
+Generalized Dispersion Mode Decomposition       |    GDMD
 Variational Mode Decomposition                  |    VMD
 Multivariate Variational Mode Decomposition     |    MVMD
 Variational Mode Extraction                     |    VME
@@ -201,6 +205,8 @@ def print_functions():
     "SSA",
     "SWD",
     "swd",
+    "GDMD",
+    "gdmd",
     "vmd",
     "VMD",
     "ACMD",

pysdkit/_gdmd/__init__.py

@@ -0,0 +1,32 @@
+# -*- coding: utf-8 -*-
+"""
+Created on 2025/07/31
+@author: Whenxuan Wang
+@email: wwhenxuan@gmail.com
+
+Generalized Dispersion Mode Decomposition (GDMD).
+"""
+
+from .gdmd import (
+    GDMD,
+    gdmd,
+    gdmd_core,
+    curve_smooth,
+    differ,
+    make_dispersive_signal,
+    spectrum_to_time,
+    unilateral_spectrum,
+    tf_spec_from_gd,
+)
+
+__all__ = [
+    "GDMD",
+    "gdmd",
+    "gdmd_core",
+    "curve_smooth",
+    "differ",
+    "make_dispersive_signal",
+    "spectrum_to_time",
+    "unilateral_spectrum",
+    "tf_spec_from_gd",
+]