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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Hyun-Goo Kim Seog-Tae Han Young-Chol Minh |
| Copyright Year | 2004 |
| Description | Author affiliation: Korea Astron. Obs., South Korea (Hyun-Goo Kim) |
| Abstract | Korea's new VLBI project to construct the Korean VLBI network (KVN) started in 2001, as a 7-year project that is fully funded by our government. We plan to build 3 new high-precision radio telescopes of 21-m diameter in 3 places in Korea which will be exclusively used for VLBI observations. We will install the 2/8, 22 and 43 GHz HEMT receivers within 2007 as a first target, and later we will expand the receiving frequency up to 86 and 129 GHz for astronomical, geodetic, and Earth science VLBI research. The millimeter-wave VLBI will be the ultimate goal of KVN. For the front-ends we are going to install a multi-channel receiver system that employs low-pass filters within a quasi-optical beam transportation system. This receiver system will give reliable phase calibrations for millimeter-wave VLBI as well as enable simultaneous multi-frequency band observations. The new hard-disk type mark 5 will be used as the main recorder of KVN. We have completed the design of the KVN DAS system of 2 Gsps sampling rate, which will use 4 data streams to meet the multi-channel requirement. A VERA type DAS modified for the mark 5 recorder is also under consideration. A new correlator project for KVN was recently approved from our government, and will start in the second half of this year. |
| Starting Page | 409 |
| Ending Page | 411 |
| File Size | 233396 |
| Page Count | 3 |
| File Format | |
| ISBN | 0780384040 |
| DOI | 10.1109/APRASC.2004.1422500 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2004-08-24 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Radio astronomy Low pass filters Government Transportation Receivers Geoscience HEMTs Frequency Calibration Structural beams |
| Content Type | Text |
| Resource Type | Article |
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