VLBI软件件相关处理机现状和发展趋势  

Current Status and Development of VLBI Software Correlator

作　　者：陈中[1,2,3] 郑为民[1,2] 

机构地区：[1]中国科学院上海天文台,上海200030 [2]中国科学院射电天文重点实验室,上海200030 [3]中国科学院大学,北京100049

出　　处：《天文学进展》2015年第4期489-505,共17页Progress In Astronomy

基　　金：国家自然科学基金(11103067;11173052;11373061);上海市优秀学术带头人项目(14XD1404300);上海市导航定位重点实验室项目(06DZ22101);中国科学院青年创新促进会资助项目

摘　　要：相关处理机是VLBI数据处理系统的核心设备。基于计算机集群和高性能并行计算技术研发的软件相关处理机,正逐渐成为VLBI海量观测数据处理的主流,并以其灵活性、扩展性、易用性等特点,在天文、测地和深空探测领域中获得广泛应用。梳理了国内外主流VLBI软件相关处理机系统发展历史和技术架构,并做归纳比较,最后分析未来的应用需求及发展趋势。Correlator is the core component of VLBI data processing device. Software correlator, which is based on the development of high performance computing clusters and parallel algorithms, is becoming the main stream of VLBI massive data processing. Moreover, due to its flexibility, short RD cycle, easy usage as well as its convenience for upgrading and expanding, software correlator has been widely used radio astronomy, geodesy and deep space exploration. In this paper, we summarize the history and evolution of software correlators developed by different institutes in the world and compare their architectures and analyze its trend of future demands and development.

关 键 词：甚长基线干涉测量 软件相关处理机 高性能计算 

分 类 号：P228.6[天文地球—大地测量学与测量工程]