Effects of Complicated Measurement Environments to Correlation of Observational Data
Correlation analysis of outer-trajectory data measured by equipments onboard spacecraft TT&C(tracking, telemetry and control) ship shows: by using differential methods to make stationary correction for measurement data, its tendency can be eliminated and stationary requirements can be satisfied; partial correlation function reflects the correlation between ,t s x x ,which has no change after differential correction, it reflects the correlation in nature; therefore, partial correlation function should be mainly based on when studying correlation of measurement data. Processing results show: all the correlated steps of slant range R are more than that of other measurement elements of the same shipboard equipments in a same mission, measuring 30 steps or so, correlated time of about 3 seconds, which shows R has a strong correlation, say, slant range value at a certain time is liable to be affected and restricted by that measured at previous time; the correlated steps of other elements are usually near 15 steps, i.e., correlated time is about 1.5 seconds.
Spacecraft TT&C ship Maritime tracking and control outer-trajectory measurement data correlation analysis
Li Xiaoyong Zhang Zhonghua He Jianwei Yang Lei Chen Guiming
China Spacecraft Maritime Tracking and Control Department, Jiangyin, Jiangsu, 214431, China
国际会议
2009 International Institute of Applied Statistics Studies(2009 国际应用统计学术研讨会)
青岛
英文
1-9
2009-07-25（万方平台首次上网日期，不代表论文的发表时间）