Search for dissertations about: "SAR"

Showing result 16 - 20 of 149 swedish dissertations containing the word SAR.

2. 16. Urban Land-cover Mapping with High-resolution Spaceborne SAR Data

   Author : Hongtao Hu; Yifang Ban; Johan Fransson; KTH; []
   Keywords : LANTBRUKSVETENSKAPER; AGRICULTURAL SCIENCES; High-resolution; RADARSAT-1 SAR; RADARSAT-2 SAR; Urban Land Cover; Object-based Classification; Neural Network; Support Vector Machines.; Remote sensing; Fjärranalys;

   Abstract : Urban areas around the world are changing constantly and therefore it is necessary to update urban land cover maps regularly. Remote sensing techniques have been used to monitor changes and update land-use/land-cover information in urban areas for decades. Optical imaging systems have received most of the attention in urban studies. READ MORE

4. 17. Spatially Adaptive Analysis and Segmentation of Polarimetric SAR Data

   Author : Wei Wang; Yifang Ban; Jianwei Wan; Xiaoxiang Zhu; KTH; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Polarimetric SAR; Spatially adaptive; Edge detection; Spherically invariant random vector SIRV ; Superpixel; Simple linear iterative clustering SLIC ; Entropy rate; Segmentation;

   Abstract : In recent years, Polarimetric Synthetic Aperture Radar (PolSAR) has been one of the most important instruments for earth observation, and is increasingly used in various remote sensing applications. Statistical modelling and scattering analysis are two main ways for PolSAR data interpretation, and have been intensively investigated in the past two decades. READ MORE

5. 18. Reconfigurable Optical Interconnection Networks for High-Performance Embedded

   Author : Sacki Agelis; Håkan Forsberg; Högskolan i Halmstad; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; MOEMS; Micro-optical-electrical mechanical systems; Reconfigurable interconnection networks; Data communication; Telecommunication; Radar signal processing; Asymmetric application; Symmetric application; STAP; SAR; Embedded systems; VCSEL; Parallel processing system; Optical communication;

   Abstract : In embedded computer and communication system the capacity demand for interconnection networks is increasing continuously in order to achieve high-performance systems. Recent breakthroughs show that by using reconfigurability inside a single chip substantial performance gains can be added. READ MORE

6. 19. Ultra-wideband synthetic aperture radar in the VHF-band: Image formation algorithms and interferometric applications

   Author : Per-Olov Frölind; Chalmers tekniska högskola; []
   Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; backprojection; wideband; VHF; DEM; SAR; CARABAS; signal processing; low frequency; interferometry;

   Abstract : Synthetic aperture radar (SAR) is a technology to generate high-resolution radar images for ground surveillance and mapping. By exploiting the lower VHF band, the attenuation reduces dramatically in forest areas compared to microwaves and new applications become feasible. READ MORE

7. 20. Multitemporal Spaceborne Polarimetric SAR Data for Urban Land Cover Mapping

   Author : Xin Niu; Yifang Ban; Paolo Gamba; KTH; []
   Keywords : NATURVETENSKAP; NATURAL SCIENCES; RADARSAT-2; spaceborne; polarimetric SAR; urban land cover; classification; Information technology; Informationsteknik;

   Abstract : Urban represents one of the most dynamic areas in the global change context. To support rational policies for sustainable urban development, remote sensing technologies such as Synthetic Aperture Radar (SAR) enjoy increasing popularity for collecting up-to-date and reliable information such as urban land cover/land-use. READ MORE