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RF and Electronics Design of the Compact Ocean Wind Vector Radiometer (COWVR)

Frank Maiwald, Oliver Montes, Sharmila Padmanabhan, Amy Wu, Zack Pannell, Violet Torossian, Alireza Bakhshi, Damon Russell, Jordan Tanabe, Hamid Javadi, Chris Holeman, Maurice Aghion (+3 others)
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
The Compact Ocean Wind Vector Radiometer (COWVR) was developed at the Jet Propulsion Laboratory as a proof of concept technology demonstration mission for the Air Force.  ...  Its receiver subsystem is based on the Jason-3 advanced microwave radiometer, which was launched in early 2016 and is currently in operation.  ...  ACKNOWLEDGMENT The authors would like to express gratitude to the teams involved in assembly and testing for their continuous professional support until the delivery of the COWVR RF and EU subsystems:  ... 
doi:10.1109/jstars.2020.3005041 fatcat:v63ycme5j5a4lbr5frttsdso4m

Completion of the AMR-C Instrument for Sentinel-6

Frank Maiwald, Shannon Brown, Timothey Koch, Lance Milligan, Erich Schlecht, Pekka Kangaslahti, Anders Skalare, Matthew Bloom, Violet Torossian, John Kanis, Shannon Statham, Shawn Kang (+1 others)
2020 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
Sentinel-6 allows continuing the study of the ocean circulation, climate change, and sea-level rise for at least another decade.  ...  This article presents a brief description of the instrument and the measured performance of the completed AMR-C-A and AMR-C-B instruments.  ...  Lim), the DC Assemblers (B. Drake and E. Hernandez), and the RF Test Team (H. Javadi, S. Sin, W. Chun, M. Chavez, and A. Pourangi), and E. Thiel for the assembly and delivery of the WCT.  ... 
doi:10.1109/jstars.2020.2991175 fatcat:o6cve3ivmfeenhmxgivvnlbyyi

Nanosatellites for earth environmental monitoring: The MicroMAS project

W. Blackwell, G. Allen, C. Galbraith, T. Hancock, R. Leslie, I. Osaretin, L. Retherford, M. Scarito, C. Semisch, M. Shields, M. Silver, D. Toher (+4 others)
2012 2012 12th Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment (MicroRad)  
The payload antenna system and RF front-end electronics are highly integrated, miniaturized, and optimized for low-power operation.  ...  Radiometric calibration is carried out using observations of cold space, the Earth's limb, and an internal noise diode that is weakly coupled through the RF front-end electronics.  ...  The authors would like to acknowledge the work of all current and previous students on the MicroMAS-1 program. Additionally, the authors would like to acknowledge the invaluable advice of Paul Bauer.  ... 
doi:10.1109/microrad.2012.6185263 fatcat:4izwsai375aivovxb6syy2kyt4

WIRA-C: a compact 142-GHz-radiometer for continuous middle-atmospheric wind measurements

Jonas Hagen, Axel Murk, Rolf Rüfenacht, Sergey Khaykin, Alain Hauchecorne, Niklaus Kämpfer
2018 Atmospheric Measurement Techniques  
As opposed to lidar systems, microwave radiometers operate autonomously and independent of daylight and clouds.  ...  The main improvements include the compact structure, lower noise and an advanced retrieval setup.  ...  We acknowledge the European Communities, the Région Réunion, CNRS, and Université de la Réunion for their support and contributions in the construction phase of the research infrastructure OPAR (  ... 
doi:10.5194/amt-11-5007-2018 fatcat:zgnmvtmf4jeojbuqs7qazdlth4

WIRA-C: A compact 142-GHz-radiometer for continuous middle-atmospheric wind measurements

Jonas Hagen, Axel Murk, Rolf Rüfenacht, Sergey Khaykin, Alain Hauchecorne, Niklaus Kämpfer
2018 Atmospheric Measurement Techniques Discussions  
<br><br> The novel WIRA-C instrument represents the newest development in microwave wind radiometry. The main improvements include the compact structure, lower noise and an advanced retrieval setup.  ...  <br><br> In this paper, we present the WIRA-C (WInd Radiometer for Campaigns) instrument that observes the 142.17504<span class="thinspace"></span>GHz rotational transition line of ozone with a high spectral  ...  We acknowledge the French National Space Agency (CNES -Centre Nationale d'Etudes Spatiales) for supporting the wind lidar maintenance.  ... 
doi:10.5194/amt-2018-69 fatcat:biu5nf4drvgmhk2uhryxp46jem

Spaceborne GNSS Reflectometry

Kegen Yu, Shuai Han, Jinwei Bu, Yuhang An, Zhewen Zhou, Changyang Wang, Sajad Tabibi, Joon Wayn Cheong
2022 Remote Sensing  
Compared with ground-based and airborne GNSS-R approaches, spaceborne GNSS-R has a number of advantages, including wide coverage and the ability to sense medium- and large-scale phenomena such as ocean  ...  This article provides an overview of these studies with a focus on the basic methods and techniques in the retrieval of a number of geophysical parameters and the detection of several objects.  ...  Acknowledgments: We are very grateful for the anonymous reviewers' comments, which have greatly improved the quality and content of the manuscript.  ... 
doi:10.3390/rs14071605 fatcat:k7kh5pb4tje3rhved3trrofabu

Overview of the NASA TROPICS CubeSat Constellation Mission

Scott Braun, Christopher Velden, Tom Greenwald, Derrick Herndon, Ralf Bennartz, Mark DeMaria, Galina Chirokova, Robert M. Atlas, Jason Dunion, Frank Marks, Robert Rogers, Hui Christophersen (+5 others)
2018 CubeSats and NanoSats for Remote Sensing II  
provided by the constellation, and a summary of science applications.  ...  The Time-Resolved Observations of Precipitation structure and storm Intensity with a Constellation of Smallsats (TROPICS) mission was selected by NASA as part of the Earth Venture-Instrument (EVI-3) program  ...  The spectrometer payload consists of a rotating passive Radio Frequency (RF) antenna measuring spectral radiance as it rotates about the SV velocity vector.  ... 
doi:10.1117/12.2320333 fatcat:uj2ow2qkyjf5zfqao5zhypvt4m

GROMOS-C, a novel ground-based microwave radiometer for ozone measurement campaigns

S. Fernandez, A. Murk, N. Kämpfer
2015 Atmospheric Measurement Techniques  
The instrument is designed in a compact way which makes it transportable and suitable for outdoor use in campaigns, an advantageous feature that is lacking in present day ozone radiometers.  ...  Among its main new features, the incorporation of different calibration loads stands out; this includes a noise diode and a new type of blackbody target specifically designed for this instrument, based  ...  Special thanks go to the electronics and mechanics workshops of the IAP, and to Mark Whale for helping in the design of the optics. Edited by: D. Feist  ... 
doi:10.5194/amt-8-2649-2015 fatcat:t762n7olyjfx3lmzemm7g6ybuy

MANTRA ‐ A Balloon Mission to Study the Odd‐Nitrogen Budget of the Stratosphere

K. Strong, G. Bailak, D. Barton, M.R. Bassford, R.D. Blatherwick, S. Brown, D. Chartrand, J. Davies, James R. Drummond, P.F. Fogal, E. Forsberg, R. Hall (+22 others)
2005 ATMOSPHERE-OCEAN  
This paper provides an overview of the MANTRA 1998 mission, and serves as an introduction to the accompanying papers in this issue of Atmosphere-Ocean that describe specific aspects and results of this  ...  Regular ozonesonde and radiosonde launches were also conducted during the two weeks prior to the main launch in order to characterize the local atmospheric conditions (winds, pressure, temperature, humidity  ...  We thank SIL for payload and launch support, and the European Centre for Medium-range Weather Forecasts for providing wind forecasts and analysed fields.  ... 
doi:10.3137/ao.430401 fatcat:hvrgq7jtkfcofnetpwjvtau5dy

GROMOS-C, a novel ground based microwave radiometer for ozone measurement campaigns

S. Fernandez, A. Murk, N. Kämpfer
2015 Atmospheric Measurement Techniques Discussions  
The instrument is designed in a compact way which makes it transportable and suitable for outdoor use in campaigns, an advantageous feature that is lacking in present day ozone radiometers.  ...  Among its main new features stands out the incorporation of different calibration loads, including a noise diode and a new type of blackbody target specifically designed for this instrument, based on Peltier  ...  Special thanks go to the electronics and mechanics workshops of the IAP, and to Mark Whale for helping in the design of the optics. Edited by: D. Feist  ... 
doi:10.5194/amtd-8-3001-2015 fatcat:y2wgtsh3xrcnjmpborfd7nk4e4

ASIS—A New Air–Sea Interaction Spar Buoy: Design and Performance at Sea

Hans C. Graber, Eugene A. Terray, Mark A. Donelan, William M. Drennan, John C. Van Leer, Donald B. Peters
2000 Journal of Atmospheric and Oceanic Technology  
In this paper the design is described and the performance of the buoy using field data is characterized.  ...  This paper describes a new, compact buoy, the Air-Sea Interaction Spar (ASIS), capable of reliably and accurately measuring directional wave spectra, atmospheric surface fluxes, and radiation in the the  ...  Steve Ramberg and Frank Herr (ONR) saw the potential of this innovative buoy concept for remote sensing and provided the support to start the development and fabrication of the ASIS buoy and Dennis Trizna  ... 
doi:10.1175/1520-0426(2000)017<0708:aanasi>2.0.co;2 fatcat:heuw3flbv5guxezcjg6gdiv3c4

Initial Results of the Geostationary Synthetic Thinned Array Radiometer (GeoSTAR) Demonstrator Instrument

A.B. Tanner, W.J. Wilson, B.H. Lambrigsten, S.J. Dinardo, S.T. Brown, P.P. Kangaslahti, T.C. Gaier, C.S. Ruf, S.M. Gross, B.H. Lim, S.B. Musko, S.. Rogacki (+1 others)
2007 IEEE Transactions on Geoscience and Remote Sensing  
The design, error budget, and preliminary test results of a 50-56-GHz synthetic aperture radiometer demonstration system are presented.  ...  Low mutual coupling among the horn antennas of our design is also critical to minimize the biases caused by crosstalk of receiver noise.  ...  Hersey for their outstanding work on the antenna range, and especially W. A. Imbriale at JPL for a most innovative antenna design.  ... 
doi:10.1109/tgrs.2007.894060 fatcat:nhbulnwjqfbjdbi7av5g6jgu7a

Going Beyond Standard Ocean Color Observations: Lidar and Polarimetry

Cédric Jamet, Amir Ibrahim, Ziauddin Ahmad, Federico Angelini, Marcel Babin, Michael J. Behrenfeld, Emmanuel Boss, Brian Cairns, James Churnside, Jacek Chowdhary, Anthony B. Davis, Davide Dionisi (+21 others)
2019 Frontiers in Marine Science  
ACKNOWLEDGMENTS Portions of this work were performed at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration.  ...  The JPL work was supported by the PACE science team grant, under Paula Bontempi. NASA, CNES, and ESA are acknowledgments for the access to the CALIPSO and Sentinel-1 images.  ...  A watertight, compact, modular and mechanically robust enclosure system to protect optical and electronic components from water and sea salt. 2.  ... 
doi:10.3389/fmars.2019.00251 fatcat:cy5ttuoerzb6pj46tocy7vpgbm

Contents

2020 2020 International Workshop on Electromagnetics: Applications and Student Innovation Competition (iWEM)  
We hope that all attendees can fully enjoy the academic experience and the beauty of Penghu. General Chairs  ...  ideas, and also a good venue for young scholars and research students to demonstrate their innovative works and results on electromagnetic field, antennas, RF and microwave circuit, and measurement technology  ...  ACKNOWLEDGMENT The authors thank Altair Engineering for the academic license of FEKO+Winprop software, and Ansys for the academic license of Electronics Desktops.  ... 
doi:10.1109/iwem49354.2020.9237401 fatcat:soy4ile3tnaqdjgnvkm27dy4dq

The DynaMICCS perspective

S. Turck-Chièze, P. Lamy, C. Carr, P. H. Carton, A. Chevalier, I. Dandouras, J. M. Defise, S. Dewitte, T. Dudok de Wit, J. P. Halain, S. Hasan, J. F. Hochedez (+9 others)
2008 Experimental astronomy (Print)  
The latter spacecraft of the same type carries a visible and infrared coronagraph for a unique observation of the solar corona and instrumentation for the study of the solar wind and imagers.  ...  The DynaMICCS mission is designed to probe and understand the dynamics of crucial regions of the Sun that determine solar variability, including the previously unexplored inner core, the radiative/convective  ...  The solar wind velocity has to be derived from ion moments rather than electron moments because the typical thermal velocities of ions are 40 times smaller than those of the electrons.  ... 
doi:10.1007/s10686-008-9111-z fatcat:mbzwtz5nkfhini4477asxs4264
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