A hybrid vegetation height estimation method using SIR-C polarimetric SAR interferometry data

From the repeat pass polarimetric SAR interferometric (Pol-InSAR) data of SIR-C L and C band on October 9 and 10, 1994, a new hybrid inversion method, combining three-stage inversion and ESPRIT (Estimation of Signal Parameters via Rotational Invariance Techniques) algorithm, of vegetation height using dual frequency Pol-InSAR data is proposed. The estimated vegetation height is compared with the field measurement data, the result indicates that the new proposed method can estimate the vegetation height with enough accuracy, if the P and X band Pol-InSAR data can be obtained, the accuracy of inversion method will significantly increase.

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