نتایج جستجو برای: interferometric synthetic aperture radar ifsar
تعداد نتایج: 197921 فیلتر نتایج به سال:
This paper addresses the problem of recovering the absolute phase from modulo-2π phase, the so-called phase unwrapping (PU) problem. PU is a key step in several imaging technologies, namely, interferometric synthetic aperture radar (InSAR), and interferometric synthetic aperture sonar (InSAS). There, the topographic information is encoded in the phase of a complex valued image with a (different...
<span>Landslides are a common type of disaster in Indonesia, especially steep-slope areas. The landslide process can be well understood by measuring the surface deformation. Currently, there no practical solutions for deformation at locations other than field surveys Pacitan Regency. We apply LiCSBAS, to identify several specific non-urban area with mixed topographical features. LiCSBAS i...
Interferometric synthetic aperture radar (InSAR) has developed rapidly over the past years and is considered as an important method for surface deformation monitoring, benefiting from growing data quantities improving quality. However, handing of SAR big poses significant challenges related algorithms pipeline, particularly in large-scale processing. In addition, InSAR are highly complex, their...
This paper describes the development of techniques for the production of urban mapping data from interferometric polarimetric synthetic aperture radar (SAR) data. The information contained in the radar data originates from four types of data properties: • Radiometric, i.e. the channel intensities • Polarimetric, e.g. decomposition properties entropy and alpha • Interferometric, e.g. coherence a...
The intensive urban infrastructures including roads, subways and high-speed railways are closely related to the sustainable economic development and social stability, and also supporting spatial distribution of various functions within the city. To ensure the security and sustainable development of transportation, we evaluated the potential of high resolution time-series Interferometric Synthet...
One aspect of the recent paradigm shift in geospatial information sciences is that data acquisition and processing systems have moved away from the single sensor-based model to advanced integrated multisensory systems, which typically include imaging and navigation sensors. Active sensors, such as Light Detection and Ranging (LiDAR) and Interferometric Synthetic Aperture Radar (IFSAR), are rout...
MOTION COMPENSATION OF INTERFEROMETRIC SYNTHETIC
-Many synthetic aperture radar (SAR) algorithms for ground-penetrating radar involve making measurements along a single path and using the collected data to form a twodimensional image of the scattering object. In the calculation of these images, certain assumptions are made about the scattering objects; mainly, that the reflections are occurring directly below the antenna location, which is no...
چکیده: تبدیل کرولت (curvelet)، نوع جدیدی از الگوریتم آنالیز چندمقیاسه بوده که برای پردازش تصاویر sar بسیار مناسب است. این تبدیل، جزو تبدیلهای هندسی محسوب میشود که برای رفع مشکلات اساسی تبدیلهای ویولت (موجک) و گابور در تشخیص لبهها و منحنیها توسعه پیدا کرد. تبدیل curvelet را میتوان در جهت رسیدن به بخشبندی بهتر و شناسایی اهداف در تصاویر ماهوارهای sar با دقت بسیار بالا به کار برد. در این مق...
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