IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium最新文献_第2页

Online High Resolution Stochastic Radiation Radar Imaging Using Sparse Covariance Fitting 稀疏协方差拟合的在线高分辨率随机辐射雷达成像

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-11-14 DOI: 10.1109/IGARSS.2019.8899156

Yongchao Zhang, Deqing Mao, Y. Bu, Junjie Wu, Yulin Huang, A. Jakobsson

引用次数: 2

Architectures and Synchronization Techniques for Coherent Distributed Remote Sensing Systems 相干分布式遥感系统的体系结构与同步技术

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-08-31 DOI: 10.1109/IGARSS.2019.8898444

J. C. Merlano-Duncan, J. Querol, Adriano Camps, S. Chatzinotas, B. Ottersten

引用次数: 3

Ocean Surface Current Measurement with an Interferometric UHF SAR 干涉式UHF SAR海洋表面流测量

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-08-30 DOI: 10.1109/IGARSS.2019.8900156

M. Sletten, Steven Menk, J. Toporkov

{"title":"Ocean Surface Current Measurement with an Interferometric UHF SAR","authors":"M. Sletten, Steven Menk, J. Toporkov","doi":"10.1109/IGARSS.2019.8900156","DOIUrl":"https://doi.org/10.1109/IGARSS.2019.8900156","url":null,"abstract":"In this paper, we report initial results of an experimental investigation into measurement of ocean surface currents with an ultra high frequency synthetic aperture radar (UHF SAR) that supports an along-track interferometric (ATI) mode. We first describe the unique system, the NRL Multiband SAR, used to collect the data. We then present initial results related to two different approaches to current measurement. In the first approach, the surface current is estimated using standard ATI-SAR processing. We show progress in the implementation of this method with an interferometric phase cut across the north wall of the Gulf Stream. In the second, a time-sequence of images of propagating wave-like patterns is first generated using sub-aperture processing of the wide-beam, strip-map data, and this sequence is then transformed into wavenumber-frequency space through a 3D FFT. The surface current is then estimated from the displacement of the wave energy relative to the theoretical surface wave dispersion relation in the absence of any underlying current. We illustrate our progress in this approach with a wavenumber-frequency analysis of a 41-second sub-aperture image sequence of propagating waves.","PeriodicalId":13262,"journal":{"name":"IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium","volume":"6 1","pages":"98-101"},"PeriodicalIF":0.0,"publicationDate":"2019-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81139686","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

Investigating Water Sustainability and Land Use/Land Cover Change (LULC) As the Impact Of Tourism Activity In Bali, Indonesia 印度尼西亚巴厘岛旅游活动对水资源可持续性和土地利用/土地覆盖变化(LULC)的影响研究

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-08-01 DOI: 10.1109/IGARSS.2019.8900060

A. B. Rimba, S. Chapagain, Y. Masago, K. Fukushi, G. Mohan

引用次数: 8

Unsupervised Change Detection in Multitemporal Multispectral Satellite Images: A Convex Relaxation Approach 多时相多光谱卫星图像的无监督变化检测:一种凸松弛方法

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8898598

Wei-Cheng Zheng, Chia-Hsiang Lin, K. Tseng, Chih-Yuan Huang, T. Lin, Chia-Hsiang Wang, Chong-Yung Chi

{"title":"Unsupervised Change Detection in Multitemporal Multispectral Satellite Images: A Convex Relaxation Approach","authors":"Wei-Cheng Zheng, Chia-Hsiang Lin, K. Tseng, Chih-Yuan Huang, T. Lin, Chia-Hsiang Wang, Chong-Yung Chi","doi":"10.1109/IGARSS.2019.8898598","DOIUrl":"https://doi.org/10.1109/IGARSS.2019.8898598","url":null,"abstract":"Change detection (CD), enabled by multitemporal multispectral satellite imagery, has many important Earth observation missions such as land cover/use monitoring, for which we observe that change regions are relatively smaller than those caused by disaster (e.g., forest fire) with patterns typically composed of a number of smooth regions. These observations are considered in our new CD criterion, which can effectively mitigate the artifacts and speckle noise suffered by existing statistic-based and difference image (DI) analysis based methods. The proposed CD criterion amounts to a large-scale non-convex optimization, which is first reformulated using the convex relaxation trick with associated change map interpreted in the probability sense, followed by adopting an efficient convex solver known as alternating direction method of multipliers (ADMM). The resulted probabilistic change map would be more practical, and can be thresholded at 0.5 to yield the conventional binary-valued one. We also reveal a link between the proposed criterion and the DI-based criterion, and demonstrate the outstanding performance of our fully unsupervised CD algorithm qualitatively and quantitatively.","PeriodicalId":13262,"journal":{"name":"IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium","volume":"14 1","pages":"1546-1549"},"PeriodicalIF":0.0,"publicationDate":"2019-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75115629","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: 6

Long-Wavelength Infrared Digital Focal Plane Arrays for Earth Remote Sensing Applications 长波红外数字焦平面阵列在地球遥感中的应用

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8900531

S. Gunapala, C. Hill, A. D'Souza, C. Masterjohn, S. Babu, P. Ghuman, Sir Rafol, D. Ting, A. Soibel, A. Khoshakhlagh, S. Keo, B. Pepper, A. Fisher, E. Luong

{"title":"Long-Wavelength Infrared Digital Focal Plane Arrays for Earth Remote Sensing Applications","authors":"S. Gunapala, C. Hill, A. D'Souza, C. Masterjohn, S. Babu, P. Ghuman, Sir Rafol, D. Ting, A. Soibel, A. Khoshakhlagh, S. Keo, B. Pepper, A. Fisher, E. Luong","doi":"10.1109/IGARSS.2019.8900531","DOIUrl":"https://doi.org/10.1109/IGARSS.2019.8900531","url":null,"abstract":"In this presentation, we will report our recent efforts in achieving high performance in Antimonides type-II strained-layer superlattice (T2SLS) based infrared photodetectors using the barrier infrared detector (BIRD) device architecture. The recent emergence of barrier infrared detectors such as the nBn [1] and the XBn [2] have resulted in mid-wave infrared (MWIR) and long-wave infrared (LWIR) detectors with substantially higher operating temperatures than previously available in III-V semiconductor based MWIR and LWIR detectors. The initial nBn devices used either InAs absorber grown on InAs substrate, or lattice-matched InAsSb alloy grown on GaSb substrate, with cutoff wavelengths of ~3.2 µm and ~4 µm, respectively. While these detectors could operate at much higher temperatures than existing MWIR detectors based on InSb, their spectral responses do not cover the full (3 – 5.5 µm) MWIR atmospheric transmission window. There also have been nBn detectors based on the InAs/GaSb type-II superlattice absorber [3] .","PeriodicalId":13262,"journal":{"name":"IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium","volume":"197 1","pages":"8856-8859"},"PeriodicalIF":0.0,"publicationDate":"2019-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76334599","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

Retrieval of Vegetation Water Content Using Brightness Temperatures from the Soil Moisture Active Passive (SMAP) Mission 利用土壤水分主被动(SMAP)任务的亮度温度反演植被含水量

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8900652

S. Chan, R. Bindlish

{"title":"Retrieval of Vegetation Water Content Using Brightness Temperatures from the Soil Moisture Active Passive (SMAP) Mission","authors":"S. Chan, R. Bindlish","doi":"10.1109/IGARSS.2019.8900652","DOIUrl":"https://doi.org/10.1109/IGARSS.2019.8900652","url":null,"abstract":"In this paper, we explore a time series approach to using the tau-omega (τ-ω) model to retrieve vegetation water content (kg/m2) with minimal use of ancillary data. Analytically, this approach calls for nonlinear optimization in two steps. First, multiple days of co-located brightness temperature observations are used to retrieve the effective vegetation opacity, which incorporates the combined radiometric and polarization effects of surface roughness and vegetation opacity. The resulting effective vegetation opacity is then used to retrieve vegetation water content to within a gain factor α and an offset factor β. By using a climatological vegetation water content ancillary database as the one adopted in the development of the SMAP standard and enhanced soil moisture products, α and β can be determined globally using the annual minimum and annual maximum of vegetation water content. The resulting values of α and β can then be used to reconstruct the retrieved vegetation water content. Formulation, assumptions, and limitations of this approach are presented alongside the preliminary global retrieval of vegetation water content using one year (2016) of SMAP brightness temperature observations.","PeriodicalId":13262,"journal":{"name":"IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium","volume":"317 1","pages":"5316-5319"},"PeriodicalIF":0.0,"publicationDate":"2019-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78383906","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

Leak Detection in Water Transmission Systems by Multispectral Remote Sensing With Airplane and UAV 基于飞机和无人机的输水系统多光谱遥感泄漏检测

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8900288

C. Chatelard, I. Legoff, Guillaume Serra, Javier Sanchis Muñoz, J. Krapez, C. Mazel, Vincent Olichon, Juan Barba Polo, Y. Frédéric, F. Hélias, P. Barillot

引用次数: 2

Soil Moisture Estimation Using CYGNSS Constellation 基于CYGNSS星座的土壤水分估算

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8898643

M. Zribi, M. Huc, Sebastian Antokoletz, M. L. Page, N. Pierdicca, N. Baghdadi

引用次数: 1

Features Extraction of the Doppler Frequency Signature of a Human Walking at 1 GHz 人体行走1ghz多普勒频率特征提取

IGARSS 2019 - 2019 IEEE International Geoscience and Remote Sensing Symposium Pub Date : 2019-07-28 DOI: 10.1109/IGARSS.2019.8897817

G. Manfredi, J. Ovarlez, L. Thirion-Lefevre

引用次数: 7