Journal ArticleDOI
The wavenumber shift in SAR interferometry
Reads0
Chats0
TLDR
The authors discuss the exploitation of this spectral shift for generation of "low noise" interferogram benefiting phase unwrapping, generation of quick-look interferograms, decorrelation reduction by means of tunable SAR systems (TINSAR), 4) range resolution enhancement, and the combination of SAR data gathered by different platforms (airborne and satellite) for a "long-time coherence" study.Abstract:
SAR surveys from separate passes show relative shifts of the ground wavenumber spectra that depend on the local slope and the off-nadir angle. The authors discuss the exploitation of this spectral shift for different applications: 1) generation of "low noise" interferograms benefiting phase unwrapping, 2) generation of quick-look interferograms, 3) decorrelation reduction by means of tunable SAR systems (TINSAR), 4) range resolution enhancement, and 5) the combination of SAR data gathered by different platforms (airborne and satellite) for a "long-time coherence" study. >read more
Citations
More filters
Journal ArticleDOI
Synthetic aperture radar interferometry
Paul A. Rosen,S. Hensley,Ian Joughin,F.K. Li,Soren N. Madsen,Ernesto Rodriguez,Richard M. Goldstein +6 more
TL;DR: In this paper, the authors present a review of the techniques of interferometry, systems and limitations, and applications in a rapidly growing area of science and engineering, including cartography, geodesy, land cover characterization, and natural hazards.
Journal ArticleDOI
Radar interferometry and its application to changes in the Earth's surface
Didier Massonnet,Kurt L. Feigl +1 more
TL;DR: In this paper, a review of the use of radar interferometry to measure changes in the Earth's surface has exploded in the early 1990s, and a practical summary explains the techniques for calculating and manipulating interferograms from various radar instruments, including the four satellites currently in orbit: ERS-1, ERS2, JERS-1 and RADARSAT.
Journal ArticleDOI
The shuttle radar topography mission—a new class of digital elevation models acquired by spaceborne radar
TL;DR: For 11 days in February 2000, the Shuttle Radar Topography Mission (SRTM) successfully recorded by interferometric synthetic aperture radar (InSAR) data of the entire land mass of the earth between 60°N and 57°S.
Journal ArticleDOI
A tutorial on synthetic aperture radar
Alberto Moreira,Pau Prats-Iraola,Marwan Younis,Gerhard Krieger,Irena Hajnsek,Konstantinos Papathanassiou +5 more
TL;DR: This paper provides first a tutorial about the SAR principles and theory, followed by an overview of established techniques like polarimetry, interferometry and differential interferometric as well as of emerging techniques (e.g., polarimetric SARinterferometry, tomography and holographic tomography).
Journal ArticleDOI
Synthetic aperture radar interferometry
Richard Bamler,Philipp Hartl +1 more
TL;DR: In this article, a review of the technology and signal theoretical aspects of InSAR is presented, where the phase differences of at least two complex-valued SAR images acquired from different orbit positions and/or at different times are exploited to measure several geophysical quantities, such as topography, deformations, glacier flows, ocean currents, vegetation properties, etc.
References
More filters
Journal ArticleDOI
Theory and design of interferometric synthetic aperture radars
Ernesto Rodriguez,J. Martin +1 more
TL;DR: In this paper, the authors derived the signal statistics, an optimal estimator of the interferometric phase, and the expression necessary to calculate the height error budget of the InSAR system.
Journal ArticleDOI
Synthetic interferometer radar for topographic mapping
TL;DR: Radar used specifically for this purpose employs synthetic-aperture techniques to obtain fine resolution measurement in two dimensions and interferometry to obtain the third measurement.
Journal ArticleDOI
Crossed orbit interferometry: theory and experimental results from SIR-B
TL;DR: In this paper, the effects of cross-track geometry on cross-over interferometry were investigated using SIR-B data and it was found that a Doppler refocusing of the SAR azimuth correlation, involving a resampling of one of the imgages in the cross track direction, is necessary to remove the linear shift of the scene.
Journal ArticleDOI
Improving slant-range resolution with multiple SAR surveys
Claudio Prati,Fabio Rocca +1 more
TL;DR: The authors derive and discuss a new technique for increasing the across-track resolution of objects that do not change with time, using multiple surveys of the same area from different off-nadir angles.