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Corrigendum to “Retrieving forest canopy clumping index using terrestrial laser scanning data” [Remote Sens. Environ. 210 (2018) 452–472]

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Remote Sensing of Environment 2018年 211卷 472-472页

作者： Lixia Ma Guang Zheng Xiaofei Wang Shiming Li Yi Lin Weimin Ju International Institute for Earth System Science Nanjing University Nanjing 210023 China Jiangsu Provincial Key Laboratory of Geographic Information Science and Technology and Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application Nanjing 210023 China Collaborative Innovation Center of South China Sea Studies Nanjing University Nanjing 210023 China Institute of Forest Resource and Information Techniques Chinese Academy of Forestry Beijing 100091 China School of Earth and Space Sciences Peking University Beijing 100871 China

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CIDE: An Integrated Development Environment for Microservices

CIDE: An Integrated Development Environment for Microservice...

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IEEE International Conference on Services Computing (SCC)

作者： Desheng Liu Hong Zhu Chengzhi Xu Ian Bayley David Lightfoot Mark Green Peter Marshall Science & Technology on Complex Electronic System Simulation Laboratory Beijing China Dept. of Comp. & Comm. Tech. Oxford Brookes Univ. Oxford UK School of Computer Science Hubei University of Technology Wuhan China

Microservices is a flexible architectural style that has many advantages over the alternative monolithic style. These include better performance and scalability. It is particularly suitable, and widely adopted, for cloud-based applications, because in this architecture a software system consisting of a large suite of services of fine granularity, each running its own process and communicating with the others. However, programming such systems is more complex. In this paper we report on CIDE, an integrated software development environment that helps with this. CIDE supports programming in a novel agent-oriented language called CAOPLE and tests their execution in a cluster environment. We present the architecture of CIDE, discuss its design based on the principles of the DevOps software development methodology, and describe facilities that support continuous testing and seamless integration, two other advantages of Microservices.

关键词： Computers Testing Virtual machining Computer architecture Cloud computing Programming

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Probabilistic robust control strategy for gust load alleviation 16

Probabilistic robust control strategy for gust load alleviat...

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16th International Forum on Aeroelasticity and Structural Dynamics, IFASD 2015

作者： Dai, Yuting Yang, Chao Wang, Chaolei School of Aeronautic Science and Engineering Beihang University Beijing100854 China Science and Technology on Special System Simulation Laboratory Beijing Simulation Center Beijing100854 China

The aeroelastic model for a wing in the time domain is constructed with continuous wind gust and structural uncertainties. The H∞ optimal method and μ synthesis are applied to the robust control law design for gust load alleviation (GLA) problem. Specifically, with instability risk introduced in the uncertain model, the GLA factor can be largely increased. The instability probability for a uncertain system and nominal GLA factor are trade-off to get a higher performance and acceptable instability risk. At the same flow velocity, the stability robustness is decreased while the nominal gust load can be largely alleviated. Vise visa, though the nominal aeroelastic model is stable at all the velocities between 10 m/s to 30 m/s, the instability risk increased with the GLA factor ascending. Results indicate that with introducing a 0.2% instability risk, the nominal gust load can be alleviated by 24.5%.

关键词： Economic and social effects

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State of the climate in 2018

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Bulletin of the American Meteorological Society 2019年第9期100卷 SI-S305页

作者： Ades, M. Adler, R. Aldeco, Laura S. Alejandra, G. Alfaro, Eric J. Aliaga-Nestares, Vannia Allan, Richard P. Allan, Rob Alves, Lincoln M. Amador, Jorge A. Andersen, J.K. Anderson, John Arndt, Derek S. Arosio, C. Arrigo, Kevin Azorin-Molina, César Bardin, M. Yu Barichivich, Jonathan Barreira, Sandra Baxter, Stephen Beck, H.E. Becker, Andreas Bell, Gerald D. Bellouin, Nicolas Belmont, M. Benedetti, Angela Benedict, Imme Bernhard, G.H. Berrisford, Paul Berry, David I. Bettio, Lynette Bhatt, U.S. Biskaborn, B.K. Bissolli, Peter Bjella, Kevin L. Bjerke, J.K. Blake, Eric S. Blenkinsop, Stephen Blunden, Jessica Bock, Olivier Bosilovich, Michael G. Boucher, Olivier Box, J.E. Boyer, Tim Braathen, Geir Bringas, Francis G. Bromwich, David H. Brown, Alrick Brown, R. Brown, Timothy J. Buehler, S.A. Cáceres, Luis Calderón, Blanca Camargo, Suzana J. Campbell, Jayaka D. Campos Diaz, Diego A. Cappelen, J. Carrea, Laura Carrier, Seth B. Carter, Brendan R. Castro, Anabel Y. Cetinic, Ivona Chambers, Don P. Chen, Lin Cheng, Lijing Cheng, Vincent Y. S. Christiansen, Hanne H. Christy, John R. Chung, E.-S. Claus, Federico Clem, Kyle R. Coelho, Caio A. S. Coldewey-Egbers, Melanie Colwell, Steve Cooper, Owen R. Cosca, Cathy Covey, Curt Coy, Lawrence Dávila, Cristina P. Davis, Sean M. de Eyto, Elvira de Jeu, Richard A. M. De Laat, Jos Decharme, B. Degasperi, Curtis L. Degenstein, Doug Demircan, Mesut Derksen, C. Dhurmea, K.R. Di Girolamo, Larry Diamond, Howard J. Diaz, Eliecer Diniz, Fransisco A. Dlugokencky, Ed J. Dohan, Kathleen Dokulil, Martin T. Dolman, A. Johannes Domingues, Catia M. Domingues, Ricardo Donat, Markus G. Dorigo, Wouter A. Drozdov, D.S. Druckenmiller, Matthew L. Dunn, Robert J. H. Durre, Imke Dutton, Geoff S. Elkharrim, M. Elkins, James W. Epstein, H.E. Espinoza, Jhan C. Famiglietti, James S. Farrell, Sinead L. Fausto, R.S. Feely, Richard A. Feng, Z. Fenimore, Chris Fettweis, X. Fioletov, Vitali E. Flemming, Johannes Fogt, Ryan L. Forbes, B.C. Foster, Michael J. Francis, S.D. Franz, Bryan A. Frey, Richard A. Frith, Stacey European Centre for Medium-Range Weather Forecasts Reading United Kingdom University of Maryland College ParkMD United States Servicio Meteorológico Nacional Buenos Aires Argentina Instituto Geofísico del Perú Lima Peru Center for Geophysical Research and School of Physics University of Costa Rica San José Costa Rica Servisâo Nacional de Meteorología e Hidrología del Perú Lima Peru University of Reading Reading United Kingdom Met Office Hadley Centre Exeter United Kingdom Centro de Ciencias do Sistema Terrestre Instituto Nacional de Pesquisas Espaciais Cachoeira PaulistaSao Paulo Brazil Geological Survey of Denmark and Greenland Copenhagen Denmark Department of Atmospheric and Planetary Science Hampton University HamptonVA United States NOAA/NESDIS National Centers for Environmental Information AshevilleNC United States University of Bremen Bremen Germany Department of Earth System Science Stanford University StanfordCA United States Regional Climate Group Department of Earth Sciences University of Gothenburg Gothenburg Sweden Centro de Investigaciones sobre Desertificación – Spanish National Research Council MoncadaValencia Spain Yu. A. Izrael Institute of Global Climate and Ecology and Institute of Geography Russian Academy of Sciences Russia Instituto de Geografía Pontificia Universidad Católica de Valparaíso Valparaíso Chile Argentine Naval Hydrographic Service Buenos Aires Argentina NOAA/NWS Climate Prediction Center College ParkMD United States Department of Civil and Environmental Engineering Princeton University PrincetonNJ United States Global Precipitation Climatology Centre Deutscher Wetterdienst Offenbach am Main Germany Seychelles National Meteorological Services Pointe Larue MahéSeychelles India Meteorology and Air Quality Group Wageningen University and Research Wageningen Netherlands Biospherical Instruments Inc San DiegoCA United States NCAS-Climate European Centre for Medium-Range Weather Forecasts Reading United Kingdom

In 2018, the dominant greenhouse gases released into Earth's atmosphere-carbon dioxide, methane, and nitrous oxide-continued their increase. The annual global average carbon dioxide concentration at Earth's surface was 407.4 ± 0.1 ppm, the highest in the modern instrumental record and in ice core records dating back 800 000 years. Combined, greenhouse gases and several halogenated gases contribute just over 3 W m−2 to radiative forcing and represent a nearly 43% increase since 1990. Carbon dioxide is responsible for about 65% of this radiative forcing. With a weak La Niña in early 2018 transitioning to a weak El Niño by the year's end, the global surface (land and ocean) temperature was the fourth highest on record, with only 2015 through 2017 being warmer. Several European countries reported record high annual temperatures. There were also more high, and fewer low, temperature extremes than in nearly all of the 68-year extremes record. Madagascar recorded a record daily temperature of 40.5°C in Morondava in March, while South Korea set its record high of 41.0°C in August in Hongcheon. Nawabshah, Pakistan, recorded its highest temperature of 50.2°C, which may be a new daily world record for April. Globally, the annual lower troposphere temperature was third to seventh highest, depending on the dataset analyzed. The lower stratospheric temperature was approximately fifth lowest. The 2018 Arctic land surface temperature was 1.2°C above the 1981-2010 average, tying for third highest in the 118-year record, following 2016 and 2017. June's Arctic snow cover extent was almost half of what it was 35 years ago. Across Greenland, however, regional summer temperatures were generally below or near average. Additionally, a satellite survey of 47 glaciers in Greenland indicated a net increase in area for the first time since records began in 1999. Increasing permafrost temperatures were reported at most observation sites in the Arctic, with the overall increase of 0.1°-0.2°C bet

关键词： Greenhouse gases

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Cloud atlas: Rotational modulations in the L/T transition brown dwarf companion HN peg B

arXiv

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arXiv 2018年

作者： Zhou, Yifan Apai, Dániel Metchev, Stanimir Lew, Ben W.P. Schneider, Glenn Marley, Mark S. Karalidi, Theodora Manjavacas, Elena Bedin, Luigi R. Cowan, Nicolas B. Miles-Páez, Paulo A. Lowrance, Patrick J. Radigan, Jacqueline Burgasser, Adam J. Department of Astronomy/Steward Observatory University of Arizona 933 N. Cherry Avenue TucsonAZ85721 United States Earths in Other Solar Systems Team NASA Nexus for Exoplanet System Science Department of Planetary Science Lunar and Planetary Laboratory University of Arizona 1640 E. University Boulevard TucsonAZ85718 United States Department of Physics & Astronomy and Centre for Planetary Science and Exploration University of Western Ontario LondonONN6A 3K7 Canada Department of Physics & Astronomy Stony Brook University 100 Nicolls Rd Stony BrookNY11794-3800 United States NASA Ames Research Center Mail Stop 245-3 Moffett FieldCA94035 United States Department of Astronomy and Astrophysics University of California Santa Cruz 1156 High Street Santa CruzCA95064 United States INAF - Osservatorio Astronomico di Padova Vicolo dell'Osservatorio 5 PadovaI-35122 Italy Department of Earth & Planetary Sciences Department of Physics McGill University 3550 Rue University MontréalQCH3A 0E8 Canada IPAC-Spitzer MC 314-6 California Institute of Technology PasadenaCA91125 United States Utah Valley University 800 West University Parkway OremUT84058 United States Center for Astrophysics and Space Science University of California San Diego San DiegoCA92093 United States

Time-resolved observations of brown dwarfs' rotational modulations provide powerful insights into the properties of condensate clouds in ultra-cool atmospheres. Multi-wavelength light curves reveal cloud vertical structures, condensate particle sizes, and cloud morphology, which directly constrain condensate cloud and atmospheric circulation models. We report results from Hubble space Telescope/Wide Field Camera 3 near-infrared G141 taken in six consecutive orbits observations of HN Peg B, an L/T transition brown dwarf companion to a G0V type star. The best-fit sine wave to the 1.1 − 1.7µm broadband light curve has the amplitude of 1.206 ± 0.025% and period of 15.4 ± 0.5 hr. The modulation amplitude has no detectable wavelength dependence except in the 1.4 µm water absorption band, indicating that the characteristic condensate particle sizes are large (> 1µm). We detect significantly (4.4σ) lower modulation amplitude in the 1.4µm water absorption band, and find that HN Peg B's spectral modulation resembles those of early T type brown dwarfs. We also describe a new empirical interpolation method to remove spectral contamination from the bright host star. This method may be applied in other high-contrast time-resolved observations with WFC3. Copyright © 2018, The Authors. All rights reserved.

关键词： Water absorption

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The Transiting Exoplanet Community Early Release science Program for JWST

arXiv

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arXiv 2018年

作者： Bean, Jacob L. Stevenson, Kevin B. Batalha, Natalie M. Berta-Thompson, Zachory Kreidberg, Laura Crouzet, Nicolas Benneke, Björn Line, Michael R. Sing, David K. Wakeford, Hannah R. Knutson, Heather A. Kempton, Eliza M.-R. Désert, Jean-Michel Crossfield, Ian Batalha, Natasha E. de Wit, Julien Parmentier, Vivien Harrington, Joseph Moses, Julianne I. Lopez-Morales, Mercedes Alam, Munazza K. Blecic, Jasmina Bruno, Giovanni Carter, Aarynn L. Chapman, John W. Decin, Leen Dragomir, Diana Evans, Thomas M. Fortney, Jonathan J. Fraine, Jonathan D. Gao, Peter Muñoz, Antonio García Gibson, Neale P. Goyal, Jayesh M. Heng, Kevin Hu, Renyu Kendrew, Sarah Kilpatrick, Brian M. Krick, Jessica Lagage, Pierre-Olivier Lendl, Monika Louden, Tom Madhusudhan, Nikku Mandell, Avi M. Mansfield, Megan May, Erin M. Morello, Giuseppe Morley, Caroline V. Nikolov, Nikolay Redfield, Seth Roberts, Jessica E. Schlawin, Everett Spake, Jessica J. Todorov, Kamen O. Tsiaras, Angelos Venot, Olivia Waalkes, William C. Wheatley, Peter J. Zellem, Robert T. Angerhausen, Daniel Barrado, David Carone, Ludmila Casewell, Sarah L. Cubillos, Patricio E. Damiano, Mario de Val-Borro, Miguel Drummond, Benjamin Edwards, Billy Endl, Michael Espinoza, Nestor France, Kevin Gizis, John E. Greene, Thomas P. Henning, Thomas K. Hong, Yucian Ingalls, James G. Iro, Nicolas Irwin, Patrick G.J. Kataria, Tiffany Lahuis, Fred Leconte, Jérémy Lillo-Box, Jorge Lines, Stefan Lothringer, Joshua D. Mancini, Luigi Marchis, Franck Mayne, Nathan Palle, Enric Rauscher, Emily Roudier, Gaël Shkolnik, Evgenya L. Southworth, John Swain, Mark R. Taylor, Jake Teske, Johanna Tinetti, Giovanna Tremblin, Pascal Tucker, Gregory S. van Boekel, Roy Waldmann, Ingo P. Weaver, Ian C. Zingales, Tiziano Department of Astronomy & Astrophysics University of Chicago 5640 S. Ellis Avenue ChicagoIL60637 United States Space Telescope Science Institute 3700 San Martin Drive BaltimoreMD21218 United States NASA Ames Research Center Mail Stop 244-30 Moffett FieldCA94035 United States Department of Astrophysical and Planetary Sciences University of Colorado BoulderCO80309 United States Harvard-Smithsonian Center for Astrophysics 60 Garden Street CambridgeMA02138 United States Harvard Society of Fellows 78 Mt. Auburn Street CambridgeMA02138 United States Instituto de Astrofísica de Canarias C. Vía Láctea s/n La Laguna TenerifeE-38205 Spain Universidad de La Laguna Dept. de Astrofísica La Laguna TenerifeE-38206 Spain Département de Physique Université de Montréal MontrealH3T 1J4 Canada School of Earth and Space Exploration Arizona State University PO Box 871404 TempeAZ85287-1404 United States Physics and Astronomy College of Engineering Mathematics and Physical Sciences University of Exeter EX4 4QL United Kingdom Division of Geological and Planetary Sciences California Institute of Technology PasadenaCA91125 United States Department of Physics Grinnell College 1116 8th Avenue GrinnellIA50112 United States Department of Astronomy University of Maryland College ParkMD20742 United States Anton Pannekoek Institute for Astronomy University of Amsterdam Science Park 904 Amsterdam1098 XH Netherlands Kavli Institute for Astrophysics and Space Research Massachusetts Institute of Technology 77 Massachusetts Ave. 37-241 CambridgeMA02139 United States Department of Earth Atmospheric and Planetary Sciences Massachusetts Institute of Technology 77 Massachusetts Avenue CambridgeMA02139 United States Aix Marseille Univ CNRS LAM Laboratoire d’Astrophysique de Marseille Marseille France Planetary Sciences Group Department of Physics University of Central Florida OrlandoFL32816-2385 United States Space Science Institute 4750 Walnut St Suite

The James Webb space Telescope (JWST) presents the opportunity to transform our understanding of planets and the origins of life by revealing the atmospheric compositions, structures, and dynamics of transiting exoplanets in unprecedented detail. However, the high-precision, time-series observations required for such investigations have unique technical challenges, and prior experience with Hubble, Spitzer, and other facilities indicates that there will be a steep learning curve when JWST becomes operational. In this paper we describe the science objectives and detailed plans of the Transiting Exoplanet Community Early Release science (ERS) Program, which is a recently approved program for JWST observations early in Cycle 1. We also describe the simulations used to establish the program. The goal of this project, for which the obtained data will have no exclusive access period, is to accelerate the acquisition and diffusion of technical expertise for transiting exoplanet observations with JWST, while also providing a compelling set of representative datasets that will enable immediate scientific breakthroughs. The Transiting Exoplanet Community ERS Program will exercise the time-series modes of all four JWST instruments that have been identified as the consensus highest priorities, observe the full suite of transiting planet characterization geometries (transits, eclipses, and phase curves), and target planets with host stars that span an illustrative range of brightnesses. The observations in this program were defined through an inclusive and transparent process that had participation from JWST instrument experts and international leaders in transiting exoplanet studies. The targets have been vetted with previous measurements, will be observable early in the mission, and have exceptional scientific merit. Community engagement in the project will be centered on a two-phase Data Challenge that culminates with the delivery of planetary spectra, time-series instrument

关键词： Extrasolar planets

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Vertical distribution of aerosol optical properties based on aircraft measurements over the Loess Plateau in China

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Journal of Environmental sciences 2015年第8期27卷 44-56页

作者： Junxia Li Xingang Liu Liang Yuan Yan Yin Zhanqing Li Peiren Li Gang Ren Lijun Jin Runjun Li Zipeng Dong Yiyu Li Junmei Yang Weather Modification Office of Shanxi Province Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration Nanjing University of Information Science and Technology State Key Laboratory of Water Environment Simulation School of Environment Beijing Normal University College of Global Change and Earth System Science Beijing Normal University Meteorological Institute of Shaanxi Province

Vertical distributions of aerosol optical properties based on aircraft measurements over the Loess Plateau were measured for the first time during a summertime aircraft campaign, 2013 in Shanxi, China. Data from four flights were analyzed. The vertical distributions of aerosol optical properties including aerosol scattering coefficients（σsc）, absorption coefficients（σab）,Angstr？m exponent（α）, single scattering albedo（ω）, backscattering ratio（βsc）, aerosol mass scattering proficiency（Q sc） and aerosol surface scattering proficiency（Q sc′） were obtained. The mean statistical values of σsc were 77.45 Mm-1（at 450 nm）, 50.72 Mm-1（at 550 nm）, and32.02 Mm-1（at 700 nm）. The mean value of σab was 7.62 Mm-1（at 550 nm）. The mean values ofα, βsc and ω were 1.93, 0.15, and 0.91, respectively. Aerosol concentration decreased with altitude. Most effective diameters（ED） of aerosols were less than 0.8 μm. The vertical profiles of σsc,, α, βsc, Q sc and Q sc′ showed that the aerosol scattering properties at lower levels contributed the most to the total aerosol radiative forcing. Both α and βsc had relatively large values, suggesting that most aerosols in the observational region were small particles. The mean values of σsc, α, βsc, Q sc, Q sc′, σab and ω at different height ranges showed that most of the parameters decreased with altitude. The forty-eight hour backward trajectories of air masses during the observation days indicated that the majority of aerosols in the lower level contributed the most to the total aerosol loading, and most of these particles originated from local or regional pollution emissions.

关键词： Vertical distribution Optical properties Aircraft measurements The Loess Plateau

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Micro-doppler Analysis on Short Waves Modulated by the One-dimensional Variant Current

Micro-doppler Analysis on Short Waves Modulated by the One-d...

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Proceedings of EUSAR 2016: 11th European Conference on Synthetic Aperture Radar

作者： Lei Liu Xiaoqing Wang Jinsong Chong Anwen Zhu Institute of Spacecraft System Engineering China Academy of Space Technology Beijing 100094 liulei211@*** China National Key Laboratory of Science and Technology on Microwave Imaging Institute of Elec-tronics Chinese Academy of Sciences Beijing 100190 huadaqq@*** China National Key Laboratory of Science and Technology on Microwave Imaging Institute of Electronics Chinese Academy of Sciences Beijing 100190 lily@*** China Institute of Spacecraft System Engineering China Academy of Space Technology Beijing 100094 awzhu501@*** China

There exist bound gravity-capillary waves (bound waves) on the ocean surface, apart from free gravity-capillary waves (free waves) that satisfy the linear dispersion relation. The Doppler spectra show that bound waves move at the speed of the dominate waves. However, the modulation characteristics of these bound waves are little studied be-fore. The main contribution of the paper is that the hydrodynamic modulation mechanism of bound waves can be analyzed through Micro-Doppler spectra. Micro-Doppler features of radar signals show that the wave-current modulation level of bound waves is stronger than free waves and different from free waves on the trend. In conclusion, the wave-current modulation of bound waves is consistent with the long waves, which can improve the accuracy of mapping sea surface current.

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A matching algorithm based on global viewpoint difference rectification for framework imagery

A matching algorithm based on global viewpoint difference re...

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IEEE International Conference on Communication Problem-Solving, ICCP 2015

作者： Shibing, Zhu Changqing, Li Sheng, Yang Chi, Zhou Department of Information Equipment Academy of Equipment Beijing101416 China Science and Technology on Complex Electronic System Simulation Laboratory Beijing101416 China

ISBN: (纸本)9781467365437

Matching precision is very important and difficult in accurate photography, remote sensing and 3D reconstruction. After analyzing the advantages and shortcomings of current matching algorithms and the epipolar geometry, a new matching algorithm based on global viewpoint difference rectification for framework imagery is devised. Without the aid of orientation parameters, this algorithm contains three parts, the scale rectification for an overall comfortable of the image, the viewport rectification for compensating the bias between the vertical plane of the primary optical axis and the main plane of the scene, and the consistent transformation of two images with different viewports. Following, the details of the implementation of our methods are also given. The validation experiments of the matching precision show that, the new algorithm can improve the precision dramatically, which is better than many other good matching algorithms. © 2015 IEEE.

关键词： Computer vision

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Polarization Projection for 3D Geometry-Based Stochastic Channel Model

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China Communications 2015年第10期12卷 52-63页

作者： PANG Lihua ZHANG Yang GONG Fengkui WANG Anyi XIAO Liyuan LIANG Xiao WANG Qiaofeng LI Jiandong School of Information Engineering Xi'an University of Science and Technology State Key Laboratory of Integrated Service Networks Xidian University National Mobile Communications Research Laboratory Southeast University Service Development Center State Commission Office for Public Sector Reform System Simulation Department ZTE Corporation

Comprehensive radiation characteristics of polarized antenna are crucial in creating practical channel coefficients for next generation wireless communication system *** currently supported within3 D geometry-based stochastic channel models(GSCM),field patterns are technically obtained by chamber measurement(or by its best fitting).However,in some channel related performance analysis scenarios,design insight can be crystallized better by starting the derivations with theoretical co-polarization and cross-polarization ***,these two components are mathematically linked with field patterns through the proposed polarization projection *** this manuscript,we focus on revealing the transformation criterion of polarization states between the antenna plane and the propagation *** practice,it makes retrieving the field patterns by electromagnetic computation ***,the impact imposed by distinct antenna orientations is geometrically illustrated and consequently incorporated into the proposed *** will further facilitate flexible performance evaluation of related radio transmission *** conclusions are verified by the closed-form expression of the dipole field pattern(via an analytical approach) and by chamber measurement ***,we find that its 2D degenerative case is aligned with the definitions in 3^(rd) generation partnership project(3GPP)technical report *** most obvious benefit of the proposed algorithm is to significantly reduce the cost on generating channel coefficients in GSCM simulation.

关键词： polarization 3D geometry-based stochastic channel model antenna orientation radiation characteristics dipole chamber measurement channel simulation

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