English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Persistent Scatterer Interferometry for SAR data (PSInSAR) improves the ability of conventional InSAR time-series methods bydetecting and analysing pixels where the portion of spatiotemporal decorrelations on the phase is negligible. Using dual/quad polarizedSAR data provide us with an additional source of information to improve further the capability of InSAR analysis. In this paper, wepresent a method to enhance PSInSAR using polarimetric optimization method on multi-temporal polarimetric SAR data. Theoptimization process has been implemented to minimize the Amplitude dispersion Index (ADI) of pixels in SAR images over the timebased on the best scattering mechanism. We evaluated the method on a dataset including 17 dual polarization SAR data (HH/VV)acquired by TerraSAR-X data from July 2013 to January 2014 over Tehran plain, Iran. The area has been affected by high rate (> 20cm/yr.) of surface subsidence due to groundwater overexploitation. The effectiveness of the method is compared for both agricultural andurban regions affected by land subsidence. Furthermore single pole and optimized polarization results are compared together and withexternal observations from GPS measurements. The results reveal that using optimum scattering mechanism decreases the ADI values inurban and non-urban regions and increase the PS Candidate pixels (PSC) about three times and subsequently improves the PS densityabout 50% more than using single channel datasets

the international archives of the photogrammetry, remote sensing and spatial information sciences/international archives of the photogrammetry, remote sensing and spatial information sciences

PSINSAR IMPROVEMENT USING AMPLITUDE DISPERSION INDEX OPTIMIZATION OF DUAL POLARIMETRY DATA