The contribution of Canada to the VSOP mission
| 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 |
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| Rok vydání: | 2000 |
| Předmět: |
Physics
Atmospheric Science Signal processing Aerospace Engineering Astronomy and Astrophysics Filter (signal processing) Compensation (engineering) Geophysics Pulsar Space and Planetary Science Data quality Very-long-baseline interferometry General Earth and Planetary Sciences Spectral resolution Zoom Remote sensing |
| Zdroj: | Advances in Space Research. 26:649-652 |
| ISSN: | 0273-1177 |
| Popis: | 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 are presently distributed worldwide at 17 observatories involved in the VSOP mission. The Canadian S2 correlator is a lag-based correlator, designed specifically to handle Space VLBI signal processing. Fringe de-rotation and delay compensation are station-based, and the correlator's 24576 lag channels can be distributed in a variety of ways to accommodate both continuum and spectral line observations. Unique design features include a station-based zoom filter for high spectral resolution, multiple pulsar gates, and a fast dump capability (1 kHz), principally used for pulsar observations. Subsequent data analysis and archiving are carried out to provide feed-back to the mission on data quality. |
| Databáze: | OpenAIRE |
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