GNSS signal quality analysis technique based on chip measurement
Signal quality analysis is an important way to ensure high quality of navigation service.Traditional signal time domain evaluation method cannot obtain the detail of signal waveform.This paper uses a method based on the chip measurements to solve this problem.At the same time,this paper proposes an algorithm to evaluate signal quality by using the chip measurement.Finally,this algorithm is used to analyze the Beidou,GPS and Galileo signals,the results show that Beidou is equally matched in signal quality with other two systems,some frequency point is slightly better than other systems in code tracking accuracy and tracking deviation.However,some Beidou signal are less consistent than other systems among satellites.Anomalies such as pseudo-range difference nonzero may occurs.
satellite navigation Signal quality analysis time domain evaluation chip measurements
Ruidan Li Xiaomei Tang Gang Ou
Satellite Navigation and Positioning R&D Center,National University of Defense Technology Changsha,China
国际会议
重庆
英文
470-475
2017-10-03（万方平台首次上网日期，不代表论文的发表时间）