Development of the new real-time VLBI technique using the Internet Protocol (Part 2)
Development of the new real-time VLBI technique using the Internet Protocol (Part 2)
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使用互联网协议开发新的实时 VLBI 技术（第 2 部分）
DOI：
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发表时间：
2001
期刊：
影响因子：
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通讯作者：
Y. Ichikawa
中科院分区：
文献类型：
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作者：
T. Kondo;Y. Koyama;M. Sekido;J. Nakajima;Hiroshi Okubo;H. Osaki;Y. Ichikawa
通信研究实验室一直在开发使用互联网协议（IP-VLBI）的多通道实时VLBI系统。该系统每通道最大采样频率为16 MHz，通过使用16通道实现了与当前大地测量VLBI相当的系统。目前已经验证了实时数据传输和高达 8 MHz 采样的相干采样。对于软件相关处理，目前我们有希望实现高达4 MHz采样的实时处理。此外，重新检查算法以提高速度。
Communications Research Laboratory has been developing the multi-channel real-time VLBI system using the Internet Protocol (IP-VLBI). This system has a maximum sampling frequency of 16 MHz per channel, and a system equivalent to the current geodetic VLBI is achieved by use of 16 channels. Real-time data transmission and a coherent sampling up to 8 MHz sampling have been checked by present. Regarding a software correlation processing, we have prospect of real-time processing up to 4 MHz sampling at present. Furthermore, the algorithm is reexamined in order to attain improvement in the speed.