% ResearchData_Package Name：Temporal variation of scattering powers from Freeman-Durden Decomposition over Winter Wheat fields % Author: Wenxin Xue (wenxin@cug.edu.cn), China University of Geosciences (Wuhan) % Tutor: Qinghua Xie (xieqh@cug.edu.cn), China University of Geosciences (Wuhan) % Date: March 2025 % Copyright (c) 2025 by Wenxin Xue and Qinghua Xie, China University of Geosciences (Wuhan)
%In this study, C-band RADARSAT-2 imagery was utilized. (Please note that this data is not subject to copyright restrictions; therefore, I will provide the power values of its components following Freeman-Durden decomposition.)
%A T3 matrix generated from the May 9, 2019 image ('T3_0509.mat') is provided for code testing.
%Step1: Involved preprocessing the data in SNAP 9.0 and generating the coherence matrix (T3).
%Step 2: The T3 matrix was imported into MATLAB, where the double-bounce, volume scattering power, and surface scattering power for each image were computed using a combination of Freeman-Durden three-component decomposition and non-negative eigenvalue decomposition (refer to Section 4.1 of the paper).
%Step 3: These results were integrated into a three-dimensional matrix (linecolumn3), yielding the file 'freeman_pspdpv_date.mat'.
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