The Analysis of Thermal Noise Effects on Signal Correlation for Spacecrafts Interferometric Tracking
This article has made a study of the thermal noise effects on spacecrafts signal correlation in details. Analysis has been made based on statistical signal processing, and the difference between CrossCorrelation method and Independent-Correlation method has been figured out. Simulation has been made to evaluate tbe phase estimation performance between two methods. Both theoretical and simulation results show that Independent-Correlation method could achieve better performance than Cross-Correlation method in the sense of phase estimation variance. And the performance of the Cross-Correlation degrades severely when the power signal-to-noise ratio is poor which is the case in deep space navigation.
inteferometry correlation phase variance
Wanhong Hao Haitao Li Lei Huang Guangliang Dong Shaowu Chen
Space TT&C Department Beijing Institute of Tracking and Telecommunications Technology Beijing, China
国际会议
三峡
英文
2748-2752
2012-05-18（万方平台首次上网日期，不代表论文的发表时间）