Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/33837
Title: Correcting ionospheric effects and monitoring two-dimensional displacement fields with multiple-aperture InSAR technology with application to the Yushu earthquake
Authors: Hu, J
Li, ZW
Zhang, L 
Ding, XL 
Zhu, JJ
Sun, Q
Ding, W
Keywords: D-InSAR
ionospheric effects
L-band
MAI
two-dimensional displacements
Yushu earthquake
Issue Date: 2012
Publisher: Science China Press
Source: Science China. Earth sciences, 2012, v. 55, no. 12, p. 1961-1971 How to cite?
Journal: Science China. Earth sciences 
Abstract: Differential synthetic aperture radar interferometry (D-InSAR) can only measure one-dimensional surface displacements along the line-of-sight (LOS) direction which greatly inhibits its development and application. In this paper, we introduce a novel approach to measuring two-dimensional (2-D) surface displacements by exploiting a single InSAR pair, which is called multi-aperture InSAR (MAI) technology. We study the effects of baseline errors and the ionosphere on MAI technology and develop a directional filter and interpolator to minimize the ionospheric effects. A PALSAR image pair covering the 2010 Yushu earthquake is used to estimate the 2-D displacement fields of the earthquake using the MAI approach. The experimental results show that MAI is superior to conventional Offset-Tracking and therefore has great potential in co-seismic displacement measurement and source parameter inversion.
URI: http://hdl.handle.net/10397/33837
ISSN: 1674-7313
EISSN: 1869-1897
DOI: 10.1007/s11430-012-4509-x
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