搜索结果: 1-15 共查到“测绘科学技术 SAR Data”相关记录61条 . 查询时间(0.14 秒)
Rabi cropped area forecasting of parts of Banaskatha District,Gujarat using MRS RISAT-1 SAR data
Dual polarisations multi-temporal discrimination cropped and un-cropped areas
2016/12/1
Radar sensors can be used for large-scale vegetation mapping and monitoring using backscatter coefficients in different polarisations and wavelength bands. Due to cloud and haze interference, optical ...
RANDOM FOREST CLASSIFICATION OF SEDIMENTS ON EXPOSED INTERTIDAL FLATS USING ALOS-2 QUAD-POLARIMETRIC SAR DATA
Coastal Zones Surveillance SAR Polarimetric Decomposition Optical Channels Random Forest
2016/12/1
Coastal zones are one of the world’s most densely populated areas and it is necessary to propose an accurate, cost effective, frequent, and synoptic method of monitoring these complex ecosystems. Howe...
A STUDY ON THE SAR DATA OBSERVATION TIME FOR THE CLASSIFICATION OF PLANTING CONDITION OF PADDY FIELDS
Paddy TerraSAR-X Classification Observation time Backscattering Polarization
2016/12/1
In recent years, cultivation methods of rice have been diversified due to the low cost of rice-growing techniques. For example, there is direct sowing of seed rice in paddy field in addition to the pr...
LAND SUBSIDENCE MONITORING USING PS-InSAR TECHNIQUE FOR L-BAND SAR DATA
Differential Interferometric synthetic (D-InSAR) Persistent Scatterer Interferometry Levelling Anthropogenic targets
2016/11/24
Differential SAR-Interferometry (D-InSAR) is one of the potential source to measure land surface motion induced due to underground coal mining. However, this technique has many limitation such as atmo...
LAND COVER MAPPING USING SENTINEL-1 SAR DATA
Sentinel-1A Synthetic Aperture Radar Land cover classification Support Vector Machines Istanbul Turkey
2016/11/24
In this paper, the potential of using free-of-charge Sentinel-1 Synthetic Aperture Radar (SAR) imagery for land cover mapping in urban areas is investigated. To this aim, we use dual-pol (VV+VH) Inter...
COMPARISON OF C-BAND AND X-BAND POLARIMETRIC SAR DATA FOR RIVER ICE CLASSIFICATION ON THE PEACE RIVER
River ice dynamics SAR Polarimetry
2016/11/23
In this study, synthetic aperture radar (SAR) data from TerraSAR-X were compared with RADARSAT-2 data to evaluate their effectiveness for river ice monitoring on the Peace River. For several years RAD...
POLARIMETRIC SAR DATA GMM CLASSIFICATION BASED ON IMPROVED FREEMAN INCOHERENT DECOMPOSITION
Improved Freeman decomposition Gaussian Mixture Model Polarimetric SAR data Iteration desorientation EM algorithm Unsupervised classification
2016/11/23
Due to the increasing volume of available SAR Data, powerful classification processings are needed to interpret the images. GMM (Gaussian Mixture Model) is widely used to model distributions. In most ...
SYNERGY OF OPTICAL AND SAR DATA FOR MAPPING AND MONITORING MANGROVES
ALOS/PALSAR R software image segmentation mangrove forest monitoring
2016/11/15
Quantitative information on mangrove cover extents is essential in producing relevant resource management plans and conservation strategies. In the Philippines, mangrove rehabilitation was made a prio...
Evaluation of Radarsat SAR data for detection of terrain features
Synergism Radarsat-SAR Optical sensor
2016/5/20
The space borne multispectral optical sensor data have been routinely used for assessment and monitoring of
natural resources and environment. One of the major problems associated with the opti...
UNSUPERVISED CLASSIFICATION OF POLARIMETRIC SAR DATA USING IMAGE CLUSTERING AND H/A/α DECOMPOSITION
Image Classification Data Clustering H/A/a Polarimetric SAR Iteration POLSARPRO
2016/3/17
This paper proposed a method of unsupervised classification of polarimetric SAR data based on image clustering and H/A/a decomposition. Fully polarimetric L band data collected by ALOS PALSAR system w...
Analyzing TerraSAR-X and COSMO-Skymed High-resolution SAR Data of Urban Areas
SAR high-resolution urban area InSAR Persistent Scatterer Interferometry
2016/1/25
The new high-resolution synthetic aperture radar (SAR) satellite systems offer new possibilities for urban remote sensing. COSMO-SkyMed and TerraSAR-X operate in X-band and both can deliver data with ...
Analysis of DEM Combination Methods using High Resolution Optical Stereo Imagery and Interferometric SAR Data
DEM/DTM High resolution Combination Fusion Accuracy Multisensor Optical SAR
2016/1/25
Digital elevation models (DEM) from satellite data are generated mainly from two types of datasets using completely different
methods: photogrammetry for optical stereo images (e.g. SPOT5, CARTOSAT)...
Classification of Polarimetric SAR Data by Complex Valued Neural Networks
PolSAR classification machine learning complex valued neural networks
2016/1/25
In the last decades it often has been shown that Multilayer Perceptrons (MLPs) are powerful function approximators. They were
successfully applied to a lot of different classification problems. Howev...
URBAN LAND-COVER MAPPING AND CHANGE DETECTION WITH RADARSAT SAR DATA USING NEURAL NETWORK AND RULE-BASED CLASSIFIERS
Urban High resolution SAR Land use/Land cover Mapping Classification Change Detection
2016/1/3
This paper presents a new approach to extract urban landuse/land-cover information from high-resolution radar satellite data. Five-date RADARSAT fine-beam SAR images over the rural-urban fringe of the...
WEIGHTED PYRAMID LINKING FOR SEGMENTATION OF FULLY-POLARIMETRIC SAR DATA
SAR Segmentation Polarization Algorithms Multiresolution Spatial
2015/12/30
Image segmentation has the general goal to define regions within an image, in which all pixels have similiar properties. For fully-polarimetric SAR data this is often done by spectral classification w...