摘要
甚长基线干涉测量技术VLBI能够弥补传统雷达测距和多普勒测速技术对垂直于视线向位置和速度不敏感的缺陷,已被广泛应用于深空航天器精密测定轨任务中。针对集群环境下VLBI数据处理的实现问题,从计算量、通信量、可扩展性、调度复杂度等方面对基线并行、测站并行、通道并行、时间并行四种并行处理方式进行对比论述分析,分析结论对正在建设中的深空干涉测量信号处理中心的数据处理系统建设具有一定的参考价值。
The VLBI(Very Long Baseline Interferometry) is one of the main tools in support of spacecraft navigation.It does not lose sensitivity to spacecraft declination when the spacecraft is near the earth's equatorial plane,as is the case for Doppler tracking.So it has been successfully used in many deep space exploration projects over the past decades.This paper discusses four parallel processing modes including the baseline parallel mode,station parallel mode,channel parallel mode,and time parallel mode.Comparison of their computation burden,communication burden,expansibility and complexity is analyzed.The conclusions are advisable for the center of China deep space interferometric tracking which is under construction.
出处
《遥测遥控》
2013年第1期29-33,共5页
Journal of Telemetry,Tracking and Command
