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Performance Evaluation of Data Archive System for High-Speed Saving of Correlated Result of Daejeon Correlator  

Roh, Duk-Gyoo (한국천문연구원)
Oh, Se-Jin (한국천문연구원)
Yeom, Jae-Hwan (한국천문연구원)
Oh, Chung-Sik (한국천문연구원)
Yun, Young-Joo (한국천문연구원)
Jung, Jin-Seung (한국천문연구원)
Jung, Dong-Kyu (한국천문연구원)
Publication Information
Journal of the Institute of Convergence Signal Processing / v.15, no.2, 2014 , pp. 55-63 More about this Journal
Abstract
In this paper, we introduce the performance evaluation of data archive system for saving correlation result of Daejeon correlator with high-data rate. Daejeon correlator supports various correlation modes, but the speed of correlation result is affected by correlator according to the integration time in each mode. Maximum data rate of Daejeon correlator is 1.4GB/s in case of C1 mode with 25.6ms integration time. In this research, the performance evaluation of the proposed data archive system is conducted for saving correlation results connected with 4 10GbE optical cable with VCS (VLBI Correlation Subsystem), which is the core system of Daejeon correlator. For the experiments, the data archive system for 2 benders was selected and benchmark test was performed. In this paper, the developed data generation program of VCS correlation result file for benchmark test and evaluation results are described.
Keywords
Daejeon Correlator; Data Archive System; Writing Speed Evaluation;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
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