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Field tests of the GeoSTAR demonstrator instrument

A.B. Tanner, S.T. Brown, T.C. Gaier, B.H. Lambrigsten, B.H. Lim, C.S. Ruf, F. Torres
2007 2007 IEEE International Geoscience and Remote Sensing Symposium  
Ground based tests of the GeoSTAR (geostationary synthetic thinned array radiometer) demonstrator instrument are reported which simulate the view of the earth from geosynchronous earth orbit (GEO).  ...  The test used a 4-meter target disk mounted on a tower above the instrument to simulate the brightness of the earth with a contrasting cold background.  ...  The far-field of the demonstrator instrument is over 200 meters, which would require a target of some 50 meters diameter to represent the earth view from GEO.  ... 
doi:10.1109/igarss.2007.4423332 dblp:conf/igarss/TannerBGLLRT07 fatcat:bmrlqhodzzaoxkmu2hsytij24e

Millimeter-wave array receivers for remote sensing

Todd Gaier, Pekka Kangaslahti, Alan Tanner, Bjorn Lambrigtsen, Shannon Brown, Michael Seiffert, Douglas Dawson, Sander Weinreb, William J. Wilson, Boon Lim, Christofer Ruf, Jeffrey Piepmeier (+3 others)
2006 Microwave Remote Sensing of the Atmosphere and Environment V  
We will describe several ground-based demonstrations of this technology including development of integrated spectral line receivers for atmospheric remote sensing, a synthetic thinned aperture radiometer  ...  The GeoSTAR instrument is shown in Figure 7 . A block diagram of the instrument is shown in Figure 8 .  ...  Figure 9a (left) The test calibrator is designed to subtend the same field of view as the Earth from geostationary orbit.  ... 
doi:10.1117/12.697830 fatcat:5fw75nwe3bgxnjgruiwzglgekq

Near Field Characterization of the GeoSTAR Demonstrator

A. Tanner, B. Lambrigsten, T. Gaier, F. Torres
2006 2006 IEEE International Symposium on Geoscience and Remote Sensing  
The GeoSTAR demonstrator can be characterized at close range by means of a simple near-to-far-field phase correction. This reduces the test set-up configuration to reasonable dimensions.  ...  This work presents the details of the near-to-far-field correction as well as some preliminary results that confirm its suitability to characterize the demonstrator.  ...  The near field test highly simplifies the design and control of the measurement set-up.  ... 
doi:10.1109/igarss.2006.654 dblp:conf/igarss/TannerLGT06 fatcat:lszepen5zrhgljwfwgflvh44yy

GeoSTAR: a synthetic aperture microwave sounder for geostationary missions

Bjorn H. Lambrigtsen, William J. Wilson, Alan B. Tanner, Pekka Kangaslahti, George J. Komar, Jinxue Wang, Toshiyoshi Kimura
2005 Enabling Sensor and Platform Technologies for Spaceborne Remote Sensing  
To that purpose a small ground based demo version of GeoSTAR is being constructed, which wiIl be used to characterize system performance and test various calibration methods.  ...  In particular, the feasibility of incorporating GeoSTAR on the next generation of the geostationary weather satellites, GOES-R, is being closely examined.  ...  Sponsored by the NASA Instrument Incubator Program, an effort is currently under way at the Jet Propulsion Laboratory to develop the required technology and demonstrate the feasibility of the synthetic  ... 
doi:10.1117/12.578967 fatcat:lyh5igccpvanhnp75tptrw5jz4

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 instrument consists of a fixed 24-element array of correlation interferometers and is capable of producing calibrated images with 1 • spatial resolution within a 17 • wide field of view.  ...  The design, error budget, and preliminary test results of a 50-56-GHz synthetic aperture radiometer demonstration system are presented.  ...  The first author, A. B. Tanner, would like to thank the coauthors from University of Michigan for a superb data system, S. Seufert and K.  ... 
doi:10.1109/tgrs.2007.894060 fatcat:nhbulnwjqfbjdbi7av5g6jgu7a

Progress in developing GeoSTAR: a microwave sounder for GOES-R

B. H. Lambrigtsen, S. T. Brown, S. J. Dinardo, P. P. Kangaslahti, A. B. Tanner, W. J. Wilson, James J. Butler
2005 Earth Observing Systems X  
A ground based prototype has been developed at the Jet Propulsion Laboratory, under NASA Instrument Incubator Program sponsorship, and is currently undergoing tests and performance characterization.  ...  The technology and system design required for GeoSTAR are rapidly maturing, and it is expected that a space demonstration mission can be developed before the first GOES-R launch.  ...  With sponsorship by the NASA Instrument Incubator Program (IIP), an effort is currently under way at the Jet Propulsion Laboratory to develop the required technology and demonstrate the feasibility of  ... 
doi:10.1117/12.615269 fatcat:vei5z5celvd3bed7lmjelpssgu

A Geostationary Microwave Sounder: Design, Implementation and Performance

Bjorn H Lambrigtsen, Pekka Kangaslahti, Oliver Montes, Derek Posselt, Jacola Roman, Mathias M. Schreier, Alan Tanner, Longtao Wu, Igor Yanovski, Noppasin Niamsuwan
2021 IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing  
During the latter half of 2020 a detailed study of GeoSTAR and its projected performance was undertaken as one of several such studies commissioned by NOAA for the purpose of configuring NOAA's next generation  ...  GeoSTAR will make measurements every 15 minutes or less instead of every 12 hours and cover a large portion of the Earth continuously instead of snapshots in a narrow swath.  ...  Two-dimensional image synthesis in the context of Earth remote sensing needed to be demonstrated, and the tests of this first instrument fulfilled that need.  ... 
doi:10.1109/jstars.2021.3132238 fatcat:cmdlv6cq6nam3dfwrzl5avl3yu

A fleet of multiparameter observatories for geophysical and environmental monitoring at seafloor

M. P. Marani, M. Nicot, H. W. Gerber, G. Clauss, J. Marvaldi, F. Gasparoni, G. D'Anna, L. Beranzoli, P. Favali, F. Gamberi
2006 Annals of Geophysics  
The architecture of the seafloor observatories follows the criteria of modularity, interoperability and standardisation in terms of materials, components and communication protocols.  ...  , geomagnetic field variations, water temperature, pressure, salinity, chemistry, currents, and gas occurrence.  ...  Acknowledgements First of all, we are deeply indebted to the EC that supported our activities and funded many projects within the framework of the MAST and the Environment Programmes.  ... 
doi:10.4401/ag-3126 doaj:72733211725040b4bdf9bfdf8af2ee51 fatcat:3kirdavpdjan5mblrludixmuhy

Mission results from the first GEOSTAR observatory (Adriatic Sea, 1998)

Laura Beranzoli, Thomas Braun, Massimo Calcara, Paolo Casale, Angelo De Santis, Giuseppe D'Anna, Domenico Di Mauro, Giuseppe Etiope, Paolo Favali, Jean-Luc Fuda, Francesco Frugoni, Fabiano Gamberi (+4 others)
2003 Earth, Planets and Space  
We assess the first mission of the GEOSTAR (GEophysical and Oceanographic STation for Abyssal Research) deep-sea multidisciplinary observatory for its technical capacity, performance and quality of recorded  ...  Despite the mission's short duration (21 days), its data demonstrated the observatory's technological reliability and scientific value.  ...  Thanks are also due to Captain Emanuele Gentile, Claudio Viezzoli and the crew of R/V Urania. Special gratitude is due to the enthusiastic Gilles Ollier, GEOSTAR EC scientific officer. We thank Mrs.  ... 
doi:10.1186/bf03351770 fatcat:dljc4lrohrej5atabjssmlfemu

Initial Results of the Geosynchronous Synthetic Thinned Array Radiometer (GeoSTAR)

A. Tanner, W. Wilson, B. Lambrigsten, S. Dinardo, S. Brown, P. Kangaslahti, T. Gaier, C. Ruf, S. Gross, B. Lim, S. Musko, S. Rogacki
2006 2006 IEEE International Symposium on Geoscience and Remote Sensing  
The design and preliminary test results of a 50-56 GHz synthetic aperture radiometer demonstration system are discussed.  ...  spacings at the center of the array, and about 5% and 3 degrees for the majority of the array.  ...  ACKNOWLEDGMENT This work has been carried out at the Jet Propulsion Laboratory, California Institute of Technology under a contract with the National Aeronautics and Space Administration.  ... 
doi:10.1109/igarss.2006.1018 fatcat:mqpp7wnxanhu3mucnd44ks7qji

Robust Array Configuration for a Microwave Interferometric Radiometer: Application to the GeoSTAR Project

F. Torres, A. B. Tanner, S. T. Brown, B. H. Lambrigsten
2007 IEEE Geoscience and Remote Sensing Letters  
Impact of antenna failure is analyzed, taking into account two test images with very different spatial harmonic content.  ...  One of the major concerns about the feasibility of this new concept is related to the ability of the sensor to cope with the failure of one or several of its single receivers/antennas.  ...  para sistemas de teledetección por microondas) for the simulations based on the simulator InRadSim, which has been adapted to the GeoSTAR configuration.  ... 
doi:10.1109/lgrs.2006.886427 fatcat:f6hux2rx6behzmv3xz6cem4wsa

Marine science and technology [chapter]

2013 The law of the sea  
Sensors and instruments will potentially collect data from above the air-sea interface to below the seafloor.  ...  The establishment of a global network of seafloor observatories will help to provide the means to accomplish this goal.  ...  Four centuries after the demonstration by Gilbert that Earth's magnetic field is largely of internal origin, our understanding of the dynamo process responsible for generating the field remains incom-plete  ... 
doi:10.18356/d71d5be7-en fatcat:kttglsgirbev3m3j5yexjp7vga

The exploration of eastern Mediterranean deep hypersaline anoxic basins with MODUS: a significant example of technology spin-off from the Geostar Program

C. Corselli, H. W. Gerber, F. Gasparoni, E. Malinverno
2006 Annals of Geophysics  
A significant example of technological spin-off from the GEOSTAR project is represented by the special-purpose instrumented module, based on the deep-sea ROV MODUS, which was developed in the framework  ...  of the EU-sponsored project BIODEEP.  ...  Acknowledgements Authors wish to dedicate this paper to the memory of Giuseppe Smriglio, coordinator of GEOSTAR project, who prematurely died in September 2001.  ... 
doi:10.4401/ag-3129 doaj:e8e553d801fa4f5db78dfac32243c041 fatcat:pnig37q55zhq5b5fcye64k7iuq

Analysis of Array Distortion in a Microwave Interferometric Radiometer: Application to the GeoSTAR Project

F. Torres, A.B. Tanner, S.T. Brown, B.H. Lambrigsten
2007 IEEE Transactions on Geoscience and Remote Sensing  
In this paper, the impact of array distortion on radiometric error is analyzed in detail so as to identify the dominant sources of error.  ...  Distortion due to mechanical or thermal constraints produces a displacement of the ideal antenna positions in the array that causes sampling errors.  ...  , polarimétricas y biestáticas para sistemas de teledetección por microondas") and has been adapted to the GeoSTAR configuration.  ... 
doi:10.1109/tgrs.2007.898093 fatcat:oz3kf46cmne53ivokz5cn23y4a

1.6 GHz Low-Power Cross-Correlator System Enabling Geostationary Earth Orbit Aperture Synthesis

Erik Ryman, Anders Emrich, Stefan Back Andersson, Lars Svensson, Per Larsson-Edefors
2014 IEEE Journal of Solid-State Circuits  
The assembled system demonstrates crosstalk of 0.04% between neighboring channels and stability of 800 s.  ...  The comparator ASIC can handle sample rates of at least 4.5 GS/s with a power dissipation of 47 mW/channel or 1 GS/s with a power dissipation of 17 mW/channel.  ...  ACKNOWLEDGMENT The authors would like to thank Dr. Alan Tanner and Isaac Ramos, JPL, for assistance with the measurement shown in Fig. 13 .  ... 
doi:10.1109/jssc.2014.2354648 fatcat:opx42i662jdtzpzl5e6lcbt5sm
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