Results 31 to 40 of about 113 (84)

Use of TanDEM-X PolInSAR for canopy height retrieval over tropical forests in the Western Ghats, India

open access: yesFrontiers in Forests and Global Change, 2022
Canopy height is a critical parameter in quantifying the vertical structure of forests. Polarimetric SAR Interferometry (PolInSAR) is a radar remote sensing technique that makes use of polarimetric separation of scattering phase centers obtained from ...
Suchithra Raveendrakumar   +4 more
doaj   +1 more source

Model-Based Biomass Estimation of a Hemi-Boreal Forest from Multitemporal TanDEM-X Acquisitions

open access: yesRemote Sensing, 2013
Above-ground forest biomass is a significant variable in the terrestrial carbon budget, but is still estimated with relatively large uncertainty. Remote sensing methods can improve the characterization of the spatial distribution and estimation accuracy ...
Maciej J. Soja   +4 more
doaj   +1 more source

Four-Stage Inversion Algorithm for Forest Height Estimation Using Repeat Pass Polarimetric SAR Interferometry Data

open access: yesRemote Sensing, 2018
This paper proposes a new method for forest height estimation using single-baseline single frequency polarimetric synthetic aperture radar interferometry (PolInSAR) data.
Tayebe Managhebi   +2 more
doaj   +1 more source

A Novel Four-Stage Method for Vegetation Height Estimation with Repeat-Pass PolInSAR Data via Temporal Decorrelation Adaptive Estimation and Distance Transformation

open access: yesRemote Sensing, 2021
Vegetation height estimation plays a pivotal role in forest mapping, which significantly promotes the study of environment and climate. This paper develops a general forest structure model for vegetation height estimation using polarimetric ...
Cheng Xing   +5 more
doaj   +1 more source

Sub-Canopy Topography Inversion Using Multi-Baseline Bistatic InSAR Without External Vegetation-Related Data

open access: yesRemote Sensing
Previous studies on single-polarized InSAR-based sub-canopy topography inversion have mainly relied on simplified or empirical models that only consider the volume scattering process. In a boreal forest area, the canopy layer is often discontinuous.
Huiqiang Wang   +3 more
doaj   +1 more source

Improved Three-stage Algorithm of Forest Height Retrieval with PolInSAR

open access: yesLeida xuebao, 2014
Employing Polarimetric Interferometry Synthetic Aperture Radar (PolInSAR) data to inverse forest parameters is a hot topic in the research field of PolInSAR. The typical forest parameter inversion algorithm is the three-stage inversion algorithm based on
Xu Li-ying   +3 more
doaj   +1 more source

Forest Height Estimation Based on P-Band Pol-InSAR Modeling and Multi-Baseline Inversion

open access: yesRemote Sensing, 2020
The Gaussian vertical backscatter (GVB) model has a pivotal role in describing the forest vertical structure more accurately, which is reflected by P-band polarimetric interferometric synthetic aperture radar (Pol-InSAR) with strong penetrability.
Xiaofan Sun   +4 more
doaj   +1 more source

A Method to Select Coherence Window Size for forest height estimation using PolInSAR Data [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2013
Estimating the height of trees is one of the most important applications of polarimetrc interferometric synthetic aperture Radar (PolInSAR). PolInSAR requires an appropriate estimation of the interferogram coherence for obtaining the best results ...
Sh. Sharifi Hashjin   +2 more
doaj   +1 more source

A HYBRID METHOD IN VEGETATION HEIGHT ESTIMATION USING POLINSAR IMAGES OF CAMPAIGN BIOSAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2015
Recently, there have been plenty of researches on the retrieval of forest height by PolInSAR data. This paper aims at the evaluation of a hybrid method in vegetation height estimation based on L-band multi-polarized air-borne SAR images.
S. Dehnavi, Y. Maghsoudi
doaj   +1 more source

An Improved Forest Height Model Using L-Band Single-Baseline Polarimetric InSAR Data for Various Forest Densities

open access: yesRemote Sensing, 2022
Forest density affects the inversion of forest height by influencing the penetration and attenuation of synthetic aperture radar (SAR) signals. Traditional forest height inversion methods often fail in low-density forest areas.
Ao Sui   +3 more
doaj   +1 more source

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