Zobrazeno 1 - 10
of 37
pro vyhledávání: '"W. T. Petrachenko"'
Autor:
D.A. Del Rizzo, B. Carlson, Wayne Cannon, W. T. Petrachenko, A. R. Taylor, B. Feir, Alexander Novikov, G. Feil, W. K. Scott, T. Burgess, Peter E. Dewdney, P. Newby, Sean M. Dougherty
Publikováno v:
Advances in Space Research. 26:649-652
The Canadian contribution to the VSOP Space VLBI mission is based on the S2 recording system, a correlation centre, and a data analysis and archive centre. The S2 record/playback terminals are a low cost and reliable means for recording VLBI data and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::092b153679cba14a8a7ed578f1847588
https://doi.org/10.1016/s0273-1177(99)01209-0
https://doi.org/10.1016/s0273-1177(99)01209-0
Autor:
P. S. Newby, Wayne Cannon, A. Novikov, G. Feil, R. D. Wietfeldt, W. T. Petrachenko, B. Feir, D. Baer, Peter E. Dewdney, P. Mathieu, J. Popelar, B. Carlson
Publikováno v:
Vistas in Astronomy. 41:297-302
The S2 VLBI system is described in some detail, including the S2 data acquisition system, data recorder and playback terminals, and the correlator.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f14f85c8ea0e6186d5420ff04a672e14
https://doi.org/10.1016/s0083-6656(97)00023-8
https://doi.org/10.1016/s0083-6656(97)00023-8
Publikováno v:
Geodesy for Planet Earth : Proceedings of the 2009 IAG Symposium, Buenos Aires, Argentina, 31 August 31 ; 4 September 2009
International Association of Geodesy Symposia ; 136
Geodesy for Planet Earth ISBN: 9783642203374
International Association of Geodesy Symposia ; 136
Geodesy for Planet Earth ISBN: 9783642203374
The International VLBI Service for Geodesy and Astrometry (IVS) is well on the way to fully defining a next generation VLBI system, called VLBI2010. The goals of the new system are to achieve 1-mm position accuracy over a 24-h observing session and t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::078bd24afccb4602e6fe1c19dabe83e9
https://gfzpublic.gfz-potsdam.de/pubman/item/item_246206
https://gfzpublic.gfz-potsdam.de/pubman/item/item_246206
Autor:
W. T. Petrachenko, P. S. Newby, G. A. Watson, H. Tan, P. Leone, W. H. Cannon, P. Mathieu, J. Popelar, R. D. Wietfeldt, John K. Zao, J. L. Yen, G. Feil, J. A. Galt
Publikováno v:
Radio Science. 26:89-99
The Canadian geophysical long baseline interferometer, a new very long baseline interferometer system, has been developed and put into operation. The system tracks source delay and fringe rotation during observation using a wave front clock. After th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::56219acba53b02ed8b2a2adca1e7a51b
https://doi.org/10.1029/90rs00241
https://doi.org/10.1029/90rs00241
Autor:
W. Schlüter, Alan R. Whitney, W. T. Petrachenko, Gino Tuccari, Chopo Ma, Yusei Koyama, Arthur Niell, N. Vandenberg, Harald Schuh, Hayo Hase
Publikováno v:
Dynamic Planet ISBN: 9783540493495
This article summarizes the results of IVS Working Group 3 ‘VLBI2010’, which was charged with creating a vision for a new geodetic VLBI instrument that will meet requirements for the coming decades. This comes at a time when problems with aging a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd57d96fb1d9e0dfdcefc6419b81402d
https://doi.org/10.1007/978-3-540-49350-1_108
https://doi.org/10.1007/978-3-540-49350-1_108
We describe the design of a correlator system for ground and space-based VLBI. The correlator contains unique signal processing functions: flexible LO frequency switching for bandwidth synthesis; 1 ms dump intervals, multi-rate digital signal-process
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b7e6381f0e7d3f3fcb198158966ac5db
Publikováno v:
International Astronomical Union Colloquium. 177:273-274
The pulsar PSR 1641-45 was observed using the S2 VLBI Recording System at 1.6 GHz with radio telescopes at Tidbinbilla and Narrabri in Australia, and at Hartebeesthoek in South Africa. The data were correlated with the Canadian S2 VLBI Correlator usi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7ef3f089185d84a6e1f0b0e4c8175783
https://doi.org/10.1017/s0252921100059698
https://doi.org/10.1017/s0252921100059698
Autor:
J. L. Yen, J. A. Galt, W. H. Cannon, D. A. Davidson, J. Popelar, W. T. Petrachenko, S. H. Knowles, D. N. Fort, W. B. Waltman
Publikováno v:
Radio Science. 17:1661-1670
A high-precision, phase coherent link between remote interferometer stations has been developed and has been utilized in a transcontinental radio interferometer to assess the feasibility of improved astrometric and geodetic measurements. A dual-tone
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7f9f33cc90177ba50c8e9fc0bbe953ad
https://doi.org/10.1029/rs017i006p01661
https://doi.org/10.1029/rs017i006p01661
Publikováno v:
Journal of Geophysical Research: Solid Earth. 84:229-236
We report geodetic and astrometric results from the analysis of fringe frequency observations from a series of three long base line interferometry (LBI) experiments carried out in 1973 between the 46-m antenna of the Algonquin Radio Observatory, Lake
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9b5d6f6b3d711e40c75237e360b33719
https://doi.org/10.1029/jb084ib01p00229
https://doi.org/10.1029/jb084ib01p00229
Autor:
Abdalmalak, Kerlos Atia, Pantaleev, Miroslav, Garcia-Munoz, Luis Enrique, Santamaria Botello, Gabriel, Llorente-Romano, Sergio, Rivera-Lavado, Alejandro, Flygare, Jonas, Lopez Fernandez, Jose Antonio, Serna Puente, Jose Manuel, Garcia-Castillo, Luis Emilio, Segovia-Vargas, Daniel
Publikováno v:
IEEE Transactions on Antennas & Propagation; Mar2020, Vol. 68 Issue 3, p1995-2007, 13p