Land subsidence can be observed with time-series of Interferometric Synthetic Aperture Radar (InSAR) data. However, existing approaches only reveal signals that are multi-scale mixed, which is not conducive to the systematic analysis different mechanisms. A deformation signal decomposition (DSD) method based on spectral used decompose extracted by InSAR into three classes signals. They refer la...

Driving at night is a dangerous activity that necessitates maximum driver awareness for safe operation of a motor vehicle. A relatively cheap and effective way to increase a driver’s situational awareness is by proving the best view of the road and existing obstacles possible. Until the perfection and proliferation of night vision systems in cars this will be accomplished using headlights. Ther...

The effects of ground deformation pose a significant geo-hazard to the environment and infrastructure in Wuhan, the most populous city in Central China, in the eastern Jianghan Plain at the intersection of the Yangtze and Han rivers. Prior to this study, however, rates and patterns of region-wide ground deformation in Wuhan were little known. Here we employ multi-temporal SAR interferometry to ...

in many countries, leveling networks are established for height determination which is one of the most important topics in geodesy. in these networks, the sum of the leveled height differences between a and b will not be equal to the difference in the orthometric heights ha and hb. the reason is that the leveling increment ?n, as we henceforth denote it, is different from the corresponding incr...