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2012 IEEE International Geoscience and Remote Sensing Symposium最新文献

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Simulating GPS Radio Occultations using 3-D numerical ray tracing 利用三维数值射线追踪模拟GPS无线电掩星
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6350994
R. Norman, J. Marshall, Chuan-Sheng Wang, B. Carter, Y. Li, S. Gordon, Kefei Zhang
{"title":"Simulating GPS Radio Occultations using 3-D numerical ray tracing","authors":"R. Norman, J. Marshall, Chuan-Sheng Wang, B. Carter, Y. Li, S. Gordon, Kefei Zhang","doi":"10.1109/IGARSS.2012.6350994","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6350994","url":null,"abstract":"Ray tracing is an important tool for the operation of GPS L-band frequency signal propagation; in particular GPS RO techniques where accurate and near real-time results are often required. Ray tracing techniques are commonly used for calculating the path of an electromagnetic signal in a medium specified by a position dependent refractive index, such as the Earth's atmosphere. In this study three dimensional numerical ray tracing techniques are used to simulate GPS L-band signals received by the LEO satellites and primarily focusing on regions of increased electron density gradients such as the equatorial anomaly. The down range refractive gradients on the GPS to LEO signal paths will be investigated. The ionosphere is a birefringent medium due to the presence of the Earth's magnetic field. The effects of the Earth's magnetic field on the transmitted signals and the paths of the ordinary and extraordinary signals are investigated.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"15 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116101773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
The new algorithm for retrieval of soil moisture and surface roughness from GNSS reflectometry 基于GNSS反射反演土壤湿度和表面粗糙度的新算法
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6351889
V. Mironov, K. Muzalevskiy
{"title":"The new algorithm for retrieval of soil moisture and surface roughness from GNSS reflectometry","authors":"V. Mironov, K. Muzalevskiy","doi":"10.1109/IGARSS.2012.6351889","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6351889","url":null,"abstract":"In this paper we propose a new simple algorithm for data processing of GNSS reflectometry. At first step of data processing of interference patterns the algorithm allows to retrieve the modulus of the reflection coefficient and then retrieve soil moisture and surface roughness of the soil. This method allows to not take into account information about the antenna pattern and height of GNSS antenna, and also excludes the impact of geodesic relief roughness. The proposed methodology was used for the retrieval moisture and surface roughness of soil using data recorded GPS receiver on a vertical polarization.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116136028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 11
Road damage detection from high-resolution RS image 基于高分辨率RS图像的道路损伤检测
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6351235
L. Gong, L. An, Mingzhong Liu, Jingfa Zhang
{"title":"Road damage detection from high-resolution RS image","authors":"L. Gong, L. An, Mingzhong Liu, Jingfa Zhang","doi":"10.1109/IGARSS.2012.6351235","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6351235","url":null,"abstract":"This paper presents a road damage extraction method based on object-oriented change detection method using road vector data overlaid on post-earthquake image. It is complex to identify all kinds of road damages in earthquakes. For the purpose of traffic capacity analysis, focusing on roads in good condition will simplify the problem, no matter how the roads are destroyed. The whole road line is provided by road network vector of appropriate scale. Subtract the good road and the damaged parts are clearly shown. This method can realize quantitative analysis on road seismic damage when lack of pre-earthquake images. In this paper it is applied to road damage extraction in Wenchuan earthquake, using high resolution remote sensing images shot just several days after the event.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"217 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116160624","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 15
Fine image matching for narrow baseline stereovision 窄基线立体视觉的精细图像匹配
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6351026
Takeshi Arai, A. Iwasaki
{"title":"Fine image matching for narrow baseline stereovision","authors":"Takeshi Arai, A. Iwasaki","doi":"10.1109/IGARSS.2012.6351026","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6351026","url":null,"abstract":"Image matching methods are integrated into digital elevation model (DEM) generation and some other satellite image processing, such as parallax correction. These applications require highly accurate disparity. In particular, a kind of DEM generation system called narrow baseline stereovision system requires fine sub-pixel image matching method. This system is attractive because of its ability to avoid an occlusion problem. In this work, to improve the estimation accuracy, we extended phase correlation technique to multi-band image. This extension can ensure robustness to target scenes, so that global accuracy of estimated disparity can be improved. We also applied proposed image matching method to commercial stereo camera images, which is useful to reduce miss-matching area compared with existing method.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"518 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116241807","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 10
The variation analysis of land surface albedo in Beijing in recent ten years 北京近10年地表反照率变化分析
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6352702
Haixia Feng, Heng Dong, Chao Chen, Qingye Meng, G. An
{"title":"The variation analysis of land surface albedo in Beijing in recent ten years","authors":"Haixia Feng, Heng Dong, Chao Chen, Qingye Meng, G. An","doi":"10.1109/IGARSS.2012.6352702","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6352702","url":null,"abstract":"The surface land albedo is an important parameter of the energy balance. It is very significant for the urban micro-climate and environment to research the variation and analysis of land surface albedo. In this paper, the variation of land surface albedo in Beijing in recent ten years, the correlation of the albedo and underlying surface type, the correlation of the albedo and LST and NDVI were studied based on ETM+ data in 2010 and 1999. The conclusions of the paper are as followed: (1) The average albedo of second, third, fourth and fifth ring in Beijing were gradually increased. The albedo of Beijing area in 2010 reduced 0.0075 compared with 1999; the albedo of main city area within fifth ring road reduced 0.0108; the albedo of the area between third ring road and fourth ring was the biggest drop range area, and it reduced 0.0135; the albedo of the area without fifth ring was the smallest range area, it reduced 0.0048. (2) The average albedo of land cover types in order from high to low: new construction areas, farmland, bare land, woodland, villages, construction zone, paddy fields, water. The change of land surface type led to the albedo difference in Beijing between 2010 and 1999.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"205 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116388842","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
Comparison of aerosol optical properties retrieved from different ground-based sky radiance observation 不同地基天空辐射观测反演的气溶胶光学特性比较
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6350342
Donghui Li, Zhengqiang Li, Kaitao Li, X. Xing
{"title":"Comparison of aerosol optical properties retrieved from different ground-based sky radiance observation","authors":"Donghui Li, Zhengqiang Li, Kaitao Li, X. Xing","doi":"10.1109/IGARSS.2012.6350342","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6350342","url":null,"abstract":"In this paper, we compared the aerosol optical properties (single scattering albedo(SSA), real part part of refractive index(mr)) at 0.44 μm retrieved from two different (principal plane(PP) and almucantar(ALM)) measurement of sky radiance, which observed from ground-based sun-sky radiometer CE318. We found 75% cases of SSA and mr retrieval are higher retrieved from ALM compared with PP, and SSA has a high correlation (R2=0.848) between these two measurement, while mr has a low(R2=0.019).","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"38 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122364878","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Exploitation of COSMO-SkyMed system for detection of ships responsible for oil spills cosmos - skymed系统的开发，用于探测对石油泄漏负有责任的船舶
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6351408
D. Staglianò, A. Lupidi, F. Berizzi, M. Martorella
{"title":"Exploitation of COSMO-SkyMed system for detection of ships responsible for oil spills","authors":"D. Staglianò, A. Lupidi, F. Berizzi, M. Martorella","doi":"10.1109/IGARSS.2012.6351408","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6351408","url":null,"abstract":"In this paper, the authors propose an innovative technique which is applied to the sea Synthetic Aperture Radar (SAR) imagery in order to aid the detection of the oil tankers responsible for oil spills. This technique aims to identify these oil spills and to correlate them to the detected ships. Real data acquired from COSMO-SkyMed (CSK) system have been processed to verify the effectiveness of this proposed new algorithm.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"88 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122537156","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 1
Improvement of ALOS interferogram quality by use of the local co-registration method using singular-point and amplitude information 利用奇异点和振幅信息的局部共配准方法改善ALOS干涉图质量
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6352049
R. Natsuaki, A. Hirose
{"title":"Improvement of ALOS interferogram quality by use of the local co-registration method using singular-point and amplitude information","authors":"R. Natsuaki, A. Hirose","doi":"10.1109/IGARSS.2012.6352049","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6352049","url":null,"abstract":"We evaluated our co-registration method which uses the number of SPs and amplitude information for ALOS data. Experimental results showed that our proposed method improves the quality of the interferogram as much as the case of JERS-1 data.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122481381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Surface observation of thwaites ice tongue in west antarctica using dual-polarized TerraSAR-X data 基于双极化TerraSAR-X数据的南极西部冰舌地表观测
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6350485
Seung Hee Kim, Duk‐jin Kim
{"title":"Surface observation of thwaites ice tongue in west antarctica using dual-polarized TerraSAR-X data","authors":"Seung Hee Kim, Duk‐jin Kim","doi":"10.1109/IGARSS.2012.6350485","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6350485","url":null,"abstract":"Various polarimetric analyses were carried out in order to verify the break-up of the Thwaites Ice Tongue. The hypothesis was that the observed crack on the ice tongue must be filled with sea ice if completely broken. Although the recently published paper asserted that the ice tongue had been completely broken, we found that it is too early to come into the conclusion. The depolarization ratio is mainly used to compare and distinguish between certain features of the ice surface and entropy, as well as mean alpha angle, is also computed as complementary information.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122547098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Monitoring water quality of Lake Taihu from HJ-CCD data using empirical models 基于HJ-CCD数据的太湖水质监测实证模型
2012 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2012-07-22 DOI: 10.1109/IGARSS.2012.6351438
Junsheng Li, Bing Zhang, Q. Shen, Lei Zou, Liwei Li
{"title":"Monitoring water quality of Lake Taihu from HJ-CCD data using empirical models","authors":"Junsheng Li, Bing Zhang, Q. Shen, Lei Zou, Liwei Li","doi":"10.1109/IGARSS.2012.6351438","DOIUrl":"https://doi.org/10.1109/IGARSS.2012.6351438","url":null,"abstract":"HJ-CCD data has a great potential in monitoring water quality of inland waters. To test the HJ-CCD data application results of inland water quality monitoring, we carried out a sampling experiment in Lake Taihu. When HJ-1 satellite passing, we obtained synchronously 30 samples of remote sensing reflectance spectra, the concentration of total suspended matter (TSM), transparency and turbidity data. Regression analyzing with 27 sampling stations of water quality parameter data and the water remote sensing reflectance obtained in Lake Taihu, we established the empirical retrieval models of concentrations of TSM, transparency and turbidity. Based on these models we obtained the TSM, transparency and turbidity distribution maps in Lake Taihu using the HJ-CCD image. Finally testing retrieval results with the reserved three sampling stations of the water surface quality parameters, the average relative error is less than 0.2. This result indicates the retrieval accuracy of inland water quality parameters from HJ-CCD data satisfied basically the application requirements.","PeriodicalId":193438,"journal":{"name":"2012 IEEE International Geoscience and Remote Sensing Symposium","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2012-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122611363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 3
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