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IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)最新文献

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An economical and highly accurate attitude and position determination system for airborne polarimetric sensors 一种经济、高精度的机载偏振传感器姿态定位系统
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.977012
D. J. Dowgiallo, J. Bobak, N. McGlothlin, K. Germain
{"title":"An economical and highly accurate attitude and position determination system for airborne polarimetric sensors","authors":"D. J. Dowgiallo, J. Bobak, N. McGlothlin, K. Germain","doi":"10.1109/IGARSS.2001.977012","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977012","url":null,"abstract":"An economical and highly accurate Attitude and Position Determination System (APDS) has been investigated for aircraft polarimetric science. The trend towards smaller and less expensive aircraft platforms makes such a system attractive and cost efficient. The list price is a fraction of the cost of popular gyroscope based systems typically used for attitude determination, but with comparable attitude accuracy. The APDS incorporates four GPS antennas in a baseline configuration that, when coupled with horn mounted inclinometers for ground based alignment, and resolvers on the positioning system, achieves a system angular accuracy of better than +/- 0.07/spl deg/, and positional information to better than 10 meters. Additionally, GPS time tagging and velocity information is available.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130209050","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: 2
View of French Guyana by ERS SAR presented on an interactive CD-ROM 由ERS SAR拍摄的法属圭亚那图像以互动光碟形式呈现
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.978037
N. Classeau, J. Rudant, H. Trebossen
{"title":"View of French Guyana by ERS SAR presented on an interactive CD-ROM","authors":"N. Classeau, J. Rudant, H. Trebossen","doi":"10.1109/IGARSS.2001.978037","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978037","url":null,"abstract":"The aim of the described CD-ROM is to introduce the main properties of synthetic aperture radar (SAR) images provided by remote sensing satellites. We have also included some concrete examples of how such radar data can be used. This presentation relies mainly on data provided by the European Remote Sensing (ERS) 1&2 satellites over the territory of French Guyana, from where those satellites were launched in 1991 and 1995 from the Space Center at Kourou.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130458740","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
Inferring Amazon water properties from their spectral signatures 从它们的光谱特征推断亚马逊水的性质
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.977941
E. Novo, W. Pereira Filho
{"title":"Inferring Amazon water properties from their spectral signatures","authors":"E. Novo, W. Pereira Filho","doi":"10.1109/IGARSS.2001.977941","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977941","url":null,"abstract":"Reports an experiment to characterize the spectral signature of major Amazon water types. We explore 60 complete sampling sets to investigate the impact of water components in the shape of water spectra. Results allowed them to be classified into 3 major classes: sediment laden water; dissolved organic carbon laden water; and transition water.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"130 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134043123","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
Azimuth variation in microwave backscatter over the Greenland Ice Sheet 格陵兰冰盖上微波反向散射的方位角变化
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.977069
I.S. Ashcraft, D. Long
{"title":"Azimuth variation in microwave backscatter over the Greenland Ice Sheet","authors":"I.S. Ashcraft, D. Long","doi":"10.1109/IGARSS.2001.977069","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977069","url":null,"abstract":"Scatterometer backscatter measurements are becoming an important tool for monitoring the dynamic behavior of the Greenland Ice S heet. However, most Greenland studies assume constant backscatter for varying azimuth angles. Detailed analysis of scatterometer data sets show non-negligible (1-2 dB) azimuth modulation. The magnitude and orientation of the azimuth modulation observed by SeaWinds, NSCAT, and ERS are documented herein. The dominate factor is second order azimuth modulation, which is largest for C-band (ERS). For SeaWinds, the h-pol azimuth modulation is larger than for v-pol.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"1118 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134303536","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: 8
On the radar imaging of the sea frontal zone: "CoastWatch-95" experiment and its analysis 海锋区的雷达成像:“海岸观察-95”试验及其分析
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.976801
D. Akimov, O. Johannessen, V. Kudryavtsev
{"title":"On the radar imaging of the sea frontal zone: \"CoastWatch-95\" experiment and its analysis","authors":"D. Akimov, O. Johannessen, V. Kudryavtsev","doi":"10.1109/IGARSS.2001.976801","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976801","url":null,"abstract":"A new model of radar imaging of ocean fronts is presented. Along with Bragg scattering the radar part of the model accounts for scattering from breaking waves. The Impact of sea front on wind waves results from both surface current and varying wind forcing adjusted to sea temperature. The model results are compared with field \"CoastWatch-95\" observations.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"294 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134329967","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
LGA scattering from measured breaking water waves: extension to jetting surfaces 测量的破碎水波的LGA散射:延伸到喷射表面
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.978033
J. West, Zhiqin Zhao, Xinan Liu, J. Duncan
{"title":"LGA scattering from measured breaking water waves: extension to jetting surfaces","authors":"J. West, Zhiqin Zhao, Xinan Liu, J. Duncan","doi":"10.1109/IGARSS.2001.978033","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.978033","url":null,"abstract":"A numerical electromagnetic technique is used to find the low grazing angle (LGA) microwave backscattering from a series of surface profiles giving the measured time evolution of the crest of a breaking water wave generated in a wave tank. Surfactant was added to the water prior to the generation of the wave, giving more energetic breaking than in previous waves similarly considered. In particular, two well-defined, fairly large jets form during the breaking. The horizontally polarized backscatter exceeds the vertically polarized backscatter as the jets form, giving brief, but large magnitude super events (or \"sea spikes\"). These events occur although front face of the modeled wave is truncated, eliminating the large-scale multipath to which super events are usually attributed. The Doppler shifts of the backscattering at the two polarizations are also quite different, with the strongest VV signal appearing at the shift associated with the maximum velocity of the jetting, while the strongest HH signals are at lower Doppler shifts associated with the formation of the jets. The shifts from the distributed-surface roughness of the turbulent \"Scar\" remaining after breaker are that expected from the orbital motion of the wave.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134374842","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
Noise constrained hyperspectral data compression 噪声约束的高光谱数据压缩
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.976067
S. T. Rupert, M. Sharp, J. Sweet, E. Cincotta
{"title":"Noise constrained hyperspectral data compression","authors":"S. T. Rupert, M. Sharp, J. Sweet, E. Cincotta","doi":"10.1109/IGARSS.2001.976067","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976067","url":null,"abstract":"Hyperspectral data present significant challenges to downlinking, processing, and exploitation. Adaptive linear unmixing compression algorithms exploit spectral correlation to produce high compression ratios with little to no loss of significant information content. This paper presents an iterative adaptive linear unmixing compression method constrained by the estimated noise statistics of the hypercube. By dynamically optimizing the end-members for each pixel this method minimizes the number of components required to represent the spectrum of any given pixel, yielding a higher compression ratio with less information loss than conventional linear unmixing model approaches. The adaptive approach utilizes spatial connectivity to optimize the end-member selection process and noise statistics to limit data loss. We will demonstrate the effectiveness of this method with AVIRIS and HyMap/sup TM/ hyperspectral datasets.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"99 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127552428","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: 9
A pilot experiment for stem volume retrieval based on VHF SAR data 基于甚高频SAR数据的树干体积检索中试研究
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.977023
A. Gustavsson, F. Walter, L. Ulander, J. Fransson, P. Frolind, T. Jonsson, B. Larsson, G. Smith, G. Stenstrom
{"title":"A pilot experiment for stem volume retrieval based on VHF SAR data","authors":"A. Gustavsson, F. Walter, L. Ulander, J. Fransson, P. Frolind, T. Jonsson, B. Larsson, G. Smith, G. Stenstrom","doi":"10.1109/IGARSS.2001.977023","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.977023","url":null,"abstract":"In Swedish forestry, reliable forest parameters are needed for both short and long term planning. The traditional methods used for acquiring forest data at reasonable accuracy are very expensive and labour intensive. Therefore, new cost-effective methods for data collection must be used to meet the requirements being imposed on timber supplies and environment conservation. Based on promising results obtained earlier in relating VHF SAR data to forest stand parameters a pilot project has been defined. The objective is to develop a fully integrated system for retrieval of forest parameters using VHF SAR images. A representative data set covering 625 km/sup 2/ of predominantly conifer-forested terrain was collected with the CARABAS-II sensor in November 2000 as an initial step.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130816237","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: 2
L-band polarimetric correlation radiometer with subharmonic sampling 带次谐波采样的l波段偏振相关辐射计
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.976997
J. Rotboll, S. Sobjaerg, N. Skou
{"title":"L-band polarimetric correlation radiometer with subharmonic sampling","authors":"J. Rotboll, S. Sobjaerg, N. Skou","doi":"10.1109/IGARSS.2001.976997","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976997","url":null,"abstract":"A novel L-band radiometer trading analog complexity for digital ditto has been designed and built. It is a fully polarimetric radiometer of the correlation type and it is based on the sub-harmonic sampling principle in which the L-band signal is directly sampled by a fast A to D converter at a frequency well below L-band. Stability has been a design driver, and the instrument is intended for airborne measurements of polarimetric sea signatures.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132879914","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: 8
Profiling atmospheric graupel, snow and ice using TRMM's PR and TMI 利用TRMM的PR和TMI分析大气霰、雪和冰
IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217) Pub Date : 2001-07-09 DOI: 10.1109/IGARSS.2001.976599
J. Meagher, Z. Haddad
{"title":"Profiling atmospheric graupel, snow and ice using TRMM's PR and TMI","authors":"J. Meagher, Z. Haddad","doi":"10.1109/IGARSS.2001.976599","DOIUrl":"https://doi.org/10.1109/IGARSS.2001.976599","url":null,"abstract":"Of TRMM's three instantaneous algorithms, the radar-only and combined radar-radiometer algorithms currently produce profiles of liquid rain only. These two algorithms do not attempt to estimate the graupel, snow or other ice distributions. This severely limits their usefulness in estimating the underlying latent heating due to the precipitation. While the radiometer algorithm does produce estimates of liquid rain and undifferentiated solid ice, it does so at a much coarser resolution than the other two and accounts for only a small fraction of the available data. In order to improve the accuracy of TRMM's current estimates of the vertical distribution of the various hydrometeor species, we have refined the combined algorithm to expand its scope and estimate graupel, snow and ice profiles along with the current rain-only estimates, at the resolution of the TRMM radar. The associated uncertainties are automatically quantified and should allow TRMM to produce robust latent heating estimates that have unprecedented accuracy.","PeriodicalId":135740,"journal":{"name":"IGARSS 2001. Scanning the Present and Resolving the Future. Proceedings. IEEE 2001 International Geoscience and Remote Sensing Symposium (Cat. No.01CH37217)","volume":"86 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2001-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132886221","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
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