航天测量船外测数据的复杂误差特性  

The Statistics of Measurement Noise of the Instrumentation Ship

作　　者：涂先勤[1,2] 易东云[1] 于宁莉[1] 李晓勇[3] 

机构地区：[1]国防科技大学理学院数学与系统科学系,湖南长沙410073 [2]91550部队,辽宁大连116023 [3]中国卫星海上测控部,江苏江阴214431

出　　处：《飞行器测控学报》2006年第3期72-77,共6页Journal of Spacecraft TT&C Technology

摘　　要：使用三次样条最小二乘拟合残差法研究了航天测量船外测数据误差的统计特性,分析了其误差的相关特性,建立了时序模型.研究结果表明,航天测量船外测数据误差具有强自相关性、非正态性、时变方差性和分段平稳性,其特性可以用高阶AR模型描述。In this paper the statistics of measurement noise of the instrumentation ship was estimated. The cubic spline function was used to approximate the real signal of the measurement. The residuals of the least square estimation were modeled with time series analysis method. The analysis results of the real data were given. It showed the strong correlation, non-normality, time-varied variance and segmented stationarity of the noise of the instrumentation ship. The feature of the noise can be approximated by the higher order auto-regressive（AR） model.

关 键 词：测量噪声 时间序列分析 航天测量船 

分 类 号：V557[航空宇航科学与技术—人机与环境工程]