Sentinel-1 TOPS interferometry for along-track displacement measurement
نویسندگان
چکیده
منابع مشابه
Measurement of slow-moving along-track displacement from an efficient multiple-aperture SAR interferometry (MAI) stacking
Multiple-aperture SAR interferometry (MAI) has demonstrated outstanding measurement accuracy of along-track displacement when compared to pixel-offsettracking methods; however, measuring slow-moving (cm/year) surface displacement remains a challenge. Stacking of multi-temporal observations is a potential approach to reducing noise and increasing measurement accuracy, but it is difficult to achi...
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متن کاملTheoretical Accuracy of Along-Track Displacement Measurements from Multiple-Aperture Interferometry (MAI)
The measurement of precise along-track displacements has been made with the multiple-aperture interferometry (MAI). The empirical accuracies of the MAI measurements are about 6.3 and 3.57 cm for ERS and ALOS data, respectively. However, the estimated empirical accuracies cannot be generalized to any interferometric pair because they largely depend on the processing parameters and coherence of t...
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The short revisit time in the ERS Tandem experiment shows the data quality reachable when the temporal coherence is high. Sentinel 1 [5] will have a revisit time of 12 days. Using the 3 days repeat data from the ice phase of ERS1, we evaluated the improvements for distributed scatterers interferometry. Slow ground motion, visible in many successive images, allows the estimation of the subsidenc...
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InSAR processing usually involves two successive steps: focusing and interferometry. Most public-domain InSAR processing toolboxes are capable of performing both operations with data acquired in the standard Stripmap mode, starting from raw SAR data (level 0). However, the focusing of burst-mode data, such as TOPS and ScanSAR, requires substantial modifications to standard focusing methods due ...
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ژورنال
عنوان ژورنال: IOP Conference Series: Earth and Environmental Science
سال: 2017
ISSN: 1755-1307,1755-1315
DOI: 10.1088/1755-1315/57/1/012019