| 摘要: |
| 角位置是深空探测航天器导航定位的重要观测量信息，相对于获取航天器距离、速度信息的统一载波测量体制，甚长基线干涉测量(Very Long Baseline Interferometry,VLBI)技术的原始数据量呈几何式增长，海量数据的实时、准实时处理对航天器高精度导航定位提出了新的挑战。依托中国深空网干涉测量中心，论述了基于高性能集群平台环境的航天器干涉测角数据相关处理系统的设计实现，并利用探月工程的实测数据进行了验证分析。分析结论对推进我国深空网干涉测量信号处理中心建设、优化相关处理系统资源配置具有一定的参考价值。 |
| 关键词: 深空探测 甚长基线干涉测量（VLBI） 高性能计算 集群平台 并行处理 |
| DOI： |
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| 基金项目:国家自然科学基金资助项目（11833001，11603001） |
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| Design of a VLBI parallel processing system based on cluster of workstations |
| HAN Songtao,LIU Chengjun,CHEN Lue,LIU Yunjie |
| (1.National Key Laboratory of Science and Technology on Aerospace Flight Dynamics,Beijing Aerospace Control Center,Beijing 100094,China;
2.National Astronomical Observatories of the Chinese Academy of Sciences,Beijing 100012,China;The 54th Institute of China Electronics Technology Group Corporation,Shijiazhuang 050081,China) |
| Abstract: |
| Angle measurement is very important for spacecraft navigation in deep space exploration and it can be an effective complementarity of ranging and Doppler tracking.The realtime and quasi-realtime processing of massive data throws down a new challenge to high precision navigation and positioning.This paper discusses the design and realization of a parallel processing system for very long baseline interferometry(VLBI) based on high performance cluster of workstations.The effectiveness of processing system is testified with tracking data in China's Chang'E project.The conclusions are advisable for China's Deep Space Interferometric Tracking Center which is under construction. |
| Key words: deep space exploration very long baseline interferometry(VLBI) high performance computing cluster of workstations paralled processing |
《电讯技术》编辑部 