Výsledky vyhledávání - "D. J. Spitzmesser"

A delay/Doppler-mapping receiver system for GPS-reflection remote sensing

Autor: M. Lough, Lawrence E. Young, J. Lerma, Ronald J. Muellerschoen, Peter M. Kroger, Garth Franklin, M.R. Marcin, John L. LaBrecque, Stephen T. Lowe, D. J. Spitzmesser

Publikováno v: IEEE Transactions on Geoscience and Remote Sensing. 40:1150-1163

A delay/Doppler-mapping receiver system, developed specifically for global positioning system (GPS)-reflection remote sensing, is described, and example delay/Doppler waveforms are presented. The high-quality data obtained with this system provide a

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1c4415d506b83545a3318a43d9976f77
https://doi.org/10.1109/tgrs.2002.1010901

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microGPS: On-Orbit Demonstration of a New Approach to GPS for Space Applications

Autor: Timothy N. Munson, Ron Muellerschoen, Stephen M. Lichten, Yoaz Bar-Sever, Willy Bertiger, Sien-Chong Wu, Lawrence Young, D. J. Spitzmesser, Jeffrey M. Srinivasan, Jeffrey Y. Tien

Publikováno v: Navigation. 47:121-127

In February 1998, the Student Nitric Oxide Explorer (SNOE) was successfully launched and began scientific observations. In addition to three instruments designed by the University of Colorado's Laboratory of Atmospheric and Space Physics to study nit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e80ba36873a7e3e126a1ddb19ae4758e
https://doi.org/10.1002/j.2161-4296.2000.tb00207.x

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TOGA, a prototype for an optimal orbiting GNSS-R instrument

Autor: Timothy N. Munson, Stephan Esterhuizen, Jeffrey Y. Tien, Lawrence E. Young, D. J. Spitzmesser, T. K. Meehan, Garth Franklin, D. Robison, Stephen T. Lowe

Publikováno v: IGARSS

Remotely sensing the Earth's surface using GNSS (Global Navigation Satellite System) signals as bi-static radar sources is one of the most challenging applications for radiometric instrument design. As part of NASA's Instrument Incubator Program, our

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::863af8a987aab0ef0fbb2fc2fe126a3d
https://doi.org/10.1109/igarss.2007.4424011

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Using the Global Positioning System for Earth orbiter and deep space tracking

Autor: S. A. Stephens, D. Sweeney, D. J. Spitzmesser, Lawrence E. Young, Jeffrey M. Srinivasan, Bruce J. Haines, Charles Dunn, S. M. Lichten

Publikováno v: Proceedings of IEEE National Telesystems Conference - NTC '94.

The Global Positioning System (GPS) can play a major role in supporting orbit and trajectory determination for spacecraft in a wide range of applications, including low-Earth, high-Earth, and even deep space (interplanetary) tracking. This paper summ

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0c81272a55f6ad8a0a6c976c5daacb5b
https://doi.org/10.1109/ntc.1994.316682

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A demonstration of a transportable radio interferometric surveying system with 3-cm accuracy on a 307-m base line

Autor: S. R. Paine, M. G. Newsted, D. J. Spitzmesser, P. F. MacDoran, J. B. Thomas, L. J. Skjerve, P. D. Batelaan, H. F. Fliegel, K. M. Ong

Publikováno v: Journal of Geophysical Research. 81:3587-3593

A precision geodetic measurement system (Aries, for Astronomical Radio Interferometric Earth Surveying) based on the technique of very long base line interferometry has been designed and implemented through the use of a 9-m transportable antenna and

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::30cd2e01dab17fb9f07fa0fce85ea047
https://doi.org/10.1029/jb081i020p03587

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Determination of UT1 and Polar Motion by the Deep Space Network Using Very Long Baseline Interferometry

Autor: J. L. Fanselow, J. B. Thomas, E. J. Cohen, P. F. MacDoran, W. G. Melbourne, B. D. Mulhall, G. H. Purcell, D. H. Rogstad, L. J. Skjerve, D. J. Spitzmesser, Jose Urech, George Nicholson

Publikováno v: Symposium - International Astronomical Union. 82:199-209

The Deep Space Network (DSN) [operated by JPL under contract to the National Aeronautics and Space Administration] is implementing a Very Long Baseline Interferometry (VLBI) capability at DSS 63 (Spain), DSS 14 (California, USA), and DSS 43 (Australi

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2bf8004c1148474957b6b95deb0e0c7c
https://doi.org/10.1017/s007418090003624x

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Current results and developments in astrometric VLBI at the Jet Propulsion Laboratory

Autor: E. J. Cohen, D. J. Spitzmesser, J. B. Thomas, L. J. Skjerve, G. H. Purcell, D. H. Rogstad, J. L. Fanselow

Publikováno v: International Astronomical Union Colloquium. 48:185-194

The Jet Propulsion Laboratory's program of astrometric VLBI as one element of a navigation system for interplanetary spacecraft includes developing a radioastrometric source catalog, and a catalog of positions of compact extragalactic radio sources c

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::af24addc83d298b27f088bb2b78a8026
https://doi.org/10.1017/s0252921100074145

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Radio interferometric determination of intercontinental baselines and Earth orientation Utilizing deep space network antennas: 1971 to 1980

Autor: Ojars J. Sovers, D. H. Rogstad, L. J. Skjerve, G. H. Purcell, J. B. Thomas, D. J. Spitzmesser, J. L. Fanselow, E. J. Cohen

Publikováno v: Journal of Geophysical Research: Solid Earth. 89:7597-7607

Progress has been made toward the realization of the potential of radio interferometry for measuring crustal motions and global rotations of the earth with accuracies at the centimeter level. In this connection, a series of experiments, primarily wit

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6f000c5e6072ec213084a7ab70c618b2
https://doi.org/10.1029/jb089ib09p07597

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A demonstration of an independent-station radio interferometry system with 4-cm precision on a 16-km base line

Autor: H. F. Fliegel, J. L. Fanselow, L. J. Skjerve, P. F. MacDoran, J. B. Thomas, D. J. Spitzmesser

Publikováno v: Journal of Geophysical Research. 81:995-1005

Radio interferometry promises eventually to measure directly, with accuracies of a few centimeters, both whole earth motions and relative crustal motions with respect to an 'inertial' reference frame. Interferometry measurements of arbitrarily long b

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::2fc9ab75480d571d47ca77e2750b03ab
https://doi.org/10.1029/jb081i005p00995

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ALSEP-quasar differential VLBI

Autor: L. Skjerve, D. J. Spitzmesser, Martin A. Slade, Alan W. Harris, Robert A. Preston

Publikováno v: The Moon. 17:133-147

A program of ALSEP-quasar very-long-baseline interferometry (VLBI) is being carried out. These observations employ primarily a 'four-antenna' technique whereby simultaneous observations with two antennas at each end of an intercontinental baseline ar

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::87e9f3f94bfa643b3e608e51f1cef9f4
https://doi.org/10.1007/bf00640904

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