搜索结果: 1-15 共查到“测绘科学技术 ASAR”相关记录15条 . 查询时间(0.125 秒)
NEURAL NETWORK-BASED ANALYTICAL MODEL FOR BIOMASS ESTIMATION IN POYANG LAKE WETLAND USING ENVISAT ASAR DATA
biomass sar wetland monitoring
2016/1/3
Poyang Lake is the largest freshwater lake in China with an area of about 3,000 km2. Its wetland ecosystem has a significant impact on China' s environment change. Traditional way to monitor biomass c...
MONITORING AGRICULTURAL ACTIVITIES USING MULTI-TEMPORAL ASAR ENVISAT DATA
Land Cover Classification Change Detection SAR Multi-temporal Agriculture
2015/12/31
Agricultural activities affect strongly their environment. Therefore and because of their other economic, industrial and political effects, monitoring agricultural areas is increasingly demanded. Spac...
ASAR IMAGE TARGET RECOGNITION BASED ON THE COMBINED WAVELET TRANSFORMATION
Advanced Synthetic Aperture Radar Target Recognition Combined Wavelet Transformation Cloud Model Mathematical Morphology
2015/12/30
ASAR image target detection and recognition has been always a hot research. In this paper, on the foundation of the previous studies, a target recognition method based on combined wavelet transformati...
REDUCTION OF ATMOSPHERIC WATER VAPOUR EFFECTS ON ENVISAT ASAR INTERFEROGRAMS USING MERIS NEAR IR MEASUREMENTS
SAR Change Detection Radar Integration Monitoring Mapping Surface Geodesy
2015/12/30
Atmospheric water vapour effects represent a major limitation of repeat-pass Interferometric SAR (InSAR) techniques including InSAR time series approaches (e.g. permanent scatterers (PS) and small bas...
SOIL MOISTURE ESTIMATION FROM RADARSAT-1,ASAR AND PALSAR DATA IN AGRICULTURAL FIELDS OF MENEMEN PLANE OF WESTERN TURKEY
RADARSAT-1 ASAR PALSAR Soil Moisture Backscatter
2015/12/30
Due to the accelerating global warming, droughts which cause severe damages especially in the agriculture became a very recurrent phenomenon in all over the world. Monitoring the characteristics of so...
STUDY ON ENVISAT ASAR DATA ASSIMILATION IN RICE GROWTH MODEL FOR YIELD ESTIMATION
Rice Yield Map Crop Model Radar Model Data Assimilation Optimization Algorithm Classification
2015/12/28
In this paper, a practical scheme for assimilation of multi-temporal and multi-polarization ENVISAT ASAR data in rice crop model to map rice yield has been presented. To achieve this, rice distributio...
LAND COVER CLASSIFICATION USING MULTI-SOURCE DATA FUSION OF ENVISAT-ASAR AND IRS P6 LISS-III SATELLITE DATA–A CASE STUDY OVER TROPICAL MOIST DECIDUOUS FORESTED REGIONS OF KARNATAKA,INDIA
Remote sensing Land cover Classification Multisensor Fusion ASAR
2015/12/23
The present study addresses the potential of Synthetic Aperture Radar (SAR) data for land cover classification in parts of Dandeli forested regions, Karnataka, India. a FCC has been generated from coh...
Study on Flood Submergence Area Monitoring Quickly Using ASAR Data
ASAR ENVISAT Flood Submergence Area Monitoring Remote Sensing Dongting Lake
2015/12/18
The object of this paper is taking full advantage of ENVISAT ASAR image in differentiating land and water area based on the research of ASAR image character, to work out a efficient method to monitor ...
Atmospheric Effects Removal of ASAR-derived InSAR Products Using MERIS Data and GPS
Satellite remote sensing,Calibration Interferometric SAR (InSAR) Spatial modeling Atmosphere Water vapor MERIS
2015/11/20
As confirmed by many scientists, atmosphere has intensive contaminative role on Interferometric Synthetic Aperture Radar (InSAR) measurements. Atmospheric parameters, always influence radar’s phase bu...
MAPPING OF AGRICULTURAL ACTIVITIES USING MULTI-TEMPORAL ASAR ENVISAT DATA
ASAR Classification Multi-Temporal Land-use Monitoring
2015/9/17
Space borne radar data facilitates continuous monitoring of almost any location on the earth (limitations in polar zones) at quite low costs. Almost weather-independent operation of radar systems enab...
evaluation of the potential of sar ers and asar envisat sensors in multi-incidence and multi-polarisation modes for landscape study in french guyana: examples of kourou and saint laurent du maroni
Calibration Comparison Polarization Landscape Radar SAR
2015/9/1
This study aims to assess the contribution of ENVISAT ASAR data for the monitoring of the littoral plains of Kourou and Saint Laurent du Maroni (French Guyana).
Multi-temporal classification of asar images in agricultural areas
ASAR Classification Multi-Temporal
2015/8/21
Human activities strongly affect the environment and impact natural resources. To reduce the disadvantages, we have to monitor the
human activities as well as the environment. Therefore demand on con...
基于PSInSAR方法和ASAR数据监测天津地面沉降的试验研究
PSInSAR 地面沉降 定标
2009/11/23
概述了PSInSAR方法的技术流程，阐述了定标ENVISAT ASAR数据对PS候选点（Persistent Scatterer Cadidate，PSC）筛选
的作用。研究表明：对ENVISAR ASAR 数据进行定标有助于筛选出更多的PS候选点；以定标得到的后向散射系数作为阈值，可以剔
除散射信号统计特性较稳定但散射强度低的像素点，从而避免可能由这些点引入的相位误差。在初步实现PSInSA...
ENVISAT-1 ASAR成像系统的设计和实现
ASAR RD算法 多普勒估计 并行设计
2013/11/4
针对ENVISAT1卫星，研究了ASAR数据成像关键算法，给出一种提高系统多普勒估计稳定性的渐进策略。文章详细论述了系统的设计和实现方法，并给出了成像系统的实际处理结果。
基于ENVISAT ASAR数据的水稻监测
水稻 ASAR 雷达后向散射系数模型
2009/3/4
由于水稻的生长期多云雨天气, 所以水稻是最适合于用合成孔径雷达(SAR)传感器监测的农作物之一. 由SAR获取的后向散射信号与水稻的生长状况相关, 包括高度、密度、生物量和结构特征, 这些参数随不同的生长阶段而有变化. 在一个水稻生长周期中, 文中获取了多时相的ENVISAT ASAR的APMode (Alternating Polarization Mode) 数据, 与此同时, 对水稻参数进行...