Performance Study of Forest Height Estimation Using Chinese Airborne Dual-Antenna X-Band PolInSAR Data
Abstract
With the development of polarimetric SAR interferometry (POLinSAR), it is of interest to develop quantitative inversion methods for the estimation of forest parameters. In this paper In this paper we present a airborne POLinSAR measurement campaign, carried out in China in 2010. The main aim of the campaign was to validate POLinSAR tree height retrieval algorithms for forest and it was arranged by East China Research Institute of Electronic Engineering, China Electronics Technology Group Corporation (CETC). The airborne Dual-Antenna PolInSAR data were acquired in January, 2010, by, over the test site near Sanya city, Hainan Province , China. Here we introduce genetic algorithm to estimate the optimal coherence , and in order to quantify the PolInSAR information about forest contained in X band data, the combination of ESPRIT method and three-stage method is used to retrieve the forest height, and the performance of the hybrid method is validated by in situ measurements. Our results show that single band X-band data allows to calculate the mean tree height with surprisingly good accuracy.
- Publication:
-
PolinSAR 2011, Science and Applications of SAR Polarimetry and Polarimetric Interferometry
- Pub Date:
- March 2011
- Bibcode:
- 2011ESASP.695E..90Z