Forest Height Estimation by Means of Pol-InSAR Data Inversion: The Role of the Vertical Wavenumber

被引：168

作者：

Kugler, Florian ^{[1
]}

Lee, Seung-Kuk ^{[2
]}

Hajnsek, Irena ^{[3
,4
]}

Papathanassiou, Konstantinos P. ^{[1
]}

机构：

[1] German Aerosp Ctr, Microwaves & Radar Inst, D-82234 Oberpfaffenhofen, Germany

[2] NASA, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

[3] Swiss Fed Inst Technol, Inst Umweltingenieurwissenschaf, CH-8093 Zurich, Switzerland

[4] German Aerosp Ctr DLR HR, Microwaves & Radar Inst, D-82234 Oberpfaffenhofen, Germany

来源：

IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING | 2015年 / 53卷 / 10期

关键词：

Forest height; L-band; P-band; polarimetric synthetic aperture radar interferometry (Pol-InSAR); spatial baseline; terrain slope; POLARIMETRIC SAR INTERFEROMETRY; TEMPORAL DECORRELATION; BOREAL FOREST; PARAMETER-ESTIMATION; VEGETATION STRUCTURE; TANDEM-X; L-BAND; LIDAR; RESOLUTION; PERFORMANCE;

D O I：

10.1109/TGRS.2015.2420996

中图分类号：

P3 [地球物理学]; P59 [地球化学];

学科分类号：

0708 ; 070902 ;

摘要：

This paper examines the multifaceted effect of the effective spatial baseline, as expressed through the vertical (interferometric) wavenumber, on the inversion of forest height from polarimetric interferometric synthetic aperture radar (Pol-InSAR) data. First, the role of the vertical wavenumber in relating forest height to the interferometric (volume) coherence is introduced. Through the review of the forest height inversion from Pol-InSAR data, the effect of the vertical wavenumber on the inversion performance is evaluated. The selection of optimum with respect to forest height inversion performance, vertical wavenumbers is discussed. The impact of the acquisition geometry and terrain slopes on the vertical wavenumber and their consideration in the inversion methodology is addressed. The individual effects discussed are demonstrated by means of airborne repeat pass Pol-InSAR acquisitions in L- and P-band acquired over different forest conditions, including a boreal, a temperate, and a tropical forest test site. The achieved forest height inversion performance is validated against reference height data derived from airborne LIDAR acquisitions.

引用

页码：5294 / 5311

页数：18

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