AN ALGORITHM OF DOR TONE PROCESSING IN VLBI SYSTEM
Very Long Baseline Interferometry (VLBI) has the advantages of far distance, tremendous high angular, high accuracy, and it is widely used in geodesy, deep space exploration.Usually spacecraft transmits high frequency sinewave Differential One-way Ranging (DOR) tones to provide the best precision.This paper presented an algorithm of DOR tone processing.It is based on cross correlation and adopts gradual frequency estimation.The algorithm can reduce computation burden and decrease error source induced by traditional local correlation method.Simulation experimental results show effectiveness of the algorithm, and it will play an important role in real-time navigation in deep space exploration project.
VLBI DOR tone Cross Correlation Frequency Estimation Max Likelihood Estimation
HAN SONGTAO TANG GESHI ZHOU LV CHEN LUE WANG YOUPING
Science and Technology on Aerospace Flight Dynamics Laboratory,Beijing,100094,China Beijing Aerospace Control Center,Beijing,100094,China
国际会议
成都
英文
2273-2277
2011-11-25(万方平台首次上网日期,不代表论文的发表时间)