2007 IEEE International Geoscience and Remote Sensing Symposium最新文献_第8页

GIFTS SM EDU data processing and algorithms gift SM EDU数据处理及算法

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4422817

J. Tian, David G. Johnson, R. Reisse, M. Gazarik

{"title":"GIFTS SM EDU data processing and algorithms","authors":"J. Tian, David G. Johnson, R. Reisse, M. Gazarik","doi":"10.1109/IGARSS.2007.4422817","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4422817","url":null,"abstract":"The geosynchronous imaging Fourier transform spectrometer (GIFTS) sensor module (SM) engineering demonstration unit (EDU) is a high resolution spectral imager designed to measure infrared (IR) radiances using a Fourier transform spectrometer (FTS). The GIFTS instrument employs three focal plane arrays (FPAs), which gather measurements across the long-wave IR (LWIR), short/mid-wave IR (SMWIR), and visible spectral bands. The raw interferogram measurements are radiometrically and spectrally calibrated to produce radiance spectra, which are further processed to obtain atmospheric profiles via retrieval algorithms. This paper describes the processing algorithms involved in the calibration stage. The calibration procedures can be subdivided into three stages. In the pre-calibration stage, a phase correction algorithm is applied to the decimated and filtered complex interferogram. The resulting imaginary part of the spectrum contains only the noise component of the uncorrected spectrum. Additional random noise reduction can be accomplished by applying a spectral smoothing routine to the phase-corrected blackbody reference spectra. In the radiometric calibration stage, we first compute the spectral responsivity based on the previous results, from which, the calibrated ambient blackbody (ABB), hot blackbody (HBB), and scene spectra can be obtained. During the post-processing stage, we estimate the noise equivalent spectral radiance (NESR) from the calibrated ABB and HBB spectra. We then implement a correction scheme that compensates for the effect of fore-optics offsets. Finally, for off-axis pixels, the FPA off-axis effects correction is performed. To estimate the performance of the entire FPA, we developed an efficient method of generating pixel performance assessments. In addition, a random pixel selection scheme is designed based on the pixel performance evaluation.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123536585","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

Deformation monitoring over a large area via the ESD technique with data takes on adjacent tracks 通过ESD技术对相邻轨道进行大面积的变形监测

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4423251

G. Fornaro, F. Serafino, A. Pauciullo

引用次数: 4

Classification comparisons between dual-pol and quad-pol SAR imagery 双极化与四极化SAR图像的分类比较

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4422755

T. Ainsworth, Jong-Sen Lee, L. Chang

引用次数: 14

Study on GIS and RS based seismic prevention and disaster reduction management information system 基于GIS和RS的防震减灾管理信息系统研究

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4423905

Xiaoqing Wang, A. Dou, X. Ding, Long Wang, Dongliang Wang

引用次数: 1

A binary decision tree classifier implementing logistic regression as a feature selection and classification method and its comparison with maximum likelihood 二叉决策树分类器实现逻辑回归作为特征选择和分类方法及其与最大似然的比较

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4423159

H. R. Bittencourt, D. Moraes, V. Haertel

引用次数: 17

TAIC algorithm for the visibility of the elliptical orbits’ satellites 椭圆轨道卫星可见性的TAIC算法

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4422913

R. Tang, Dong-yun Yi, Jubo Zhu, Qiang Luo, Jing Yao

引用次数: 5

Potential of a C-band SAR mission with 12-day repeat cycle to derive ice surface velocity with interferometry and offset tracking 利用干涉测量和偏移跟踪技术获得冰面速度的12天重复周期c波段SAR任务的潜力

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4423784

T. Strozzi, U. Wegmüller, C. Werner, A. Wiesmann, M. Santoro

{"title":"Potential of a C-band SAR mission with 12-day repeat cycle to derive ice surface velocity with interferometry and offset tracking","authors":"T. Strozzi, U. Wegmüller, C. Werner, A. Wiesmann, M. Santoro","doi":"10.1109/IGARSS.2007.4423784","DOIUrl":"https://doi.org/10.1109/IGARSS.2007.4423784","url":null,"abstract":"The goal of this contribution is the assessment of the potential of a C-band SAR mission with repeat-pass interval of 12 days - as the intended European satellite system Sentinel-1 - to derive ice surface velocity using SAR interferometry (InSAR) and offset-tracking. For this purpose we investigated ERS-1 SAR data acquired during the ice missions in 1992 and 1994 in 3-day repeat- orbits at Nordaustlandet in the northeast Svalbard archipelago. In 12-days winter InSAR pairs phase decorrellation is mainly observed in areas of high strain rates and, in certain cases, because of snow melting or redistribution through snowfall or wind. Velocity maps derived from these image pairs were found useful to enhance in regions of slow glacier flow the mapping of the surface ice-flow divides previously determined from optical imagery and topographic information. Range-azimuth offset-tracking investigations suggest that the expected error of this method is on the order of 50 m/year and that spatial coverage is generally satisfactory. Application of dual-azimuth offset- tracking, use of HH polarization and enhanced spatial resolution, feasible with Sentinel-1, could enhance the expected error.","PeriodicalId":284711,"journal":{"name":"2007 IEEE International Geoscience and Remote Sensing Symposium","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121523241","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

Polarimetric phase gradient autofocus 偏振相位梯度自动对焦

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4422747

M. Martorella, M. Preiss, B. Haywood, B. Bates

引用次数: 7

Improving access to MODIS biophysical science products for NACP investigators 为NACP研究者改善MODIS生物物理科学产品的获取途径

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4422972

R. Wolfe, F. Gao, J. Morisette, G. Ederer, J. Pedelty

引用次数: 2

RadSTAR L-band imaging scatterometer- performance assessment RadSTAR l波段成像散射计-性能评估

2007 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2007-07-23 DOI: 10.1109/IGARSS.2007.4423964

R. Rincon, P. Hildebrand, L. Hilliard

引用次数: 3