研究目的
To retrieve forest height using an adaptive scattering model decomposition technique with PolInSAR data.
研究成果
The proposed method enhances the accuracy of vegetation height estimation by combining the adaptive decomposition technique and coherence amplitude algorithm. It not only provides relative accuracy for height estimation but also estimates the power contribution of each scattering type. The method was successfully tested using ESAR data.
研究不足
The study is limited to the use of ESAR PolInSAR L band data of Oberpfaffenhofen, Germany. The accuracy of forest height estimation may vary with different datasets or environmental conditions.
1：Experimental Design and Method Selection:
The method combines the adaptive scattering model decomposition technique and the coherence amplitude method.
2：Sample Selection and Data Sources:
ESAR PolInSAR L band data of Oberpfaffenhofen, Germany is used.
3：List of Experimental Equipment and Materials:
PolInSAR data from E-SAR L-band.
4：Experimental Procedures and Operational Workflow:
The ground topography and canopy phase are estimated using line fit technique and adaptive decomposition technique. The forest height is then estimated by phase differencing and combined with the height estimated using the coherence amplitude method.
5：Data Analysis Methods:
The performance of the proposed method is tested by comparing it to the three-stage inversion method.
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