期刊论文

The Effects of Low-latitude Ionospheric Scintillation on GPS Observation and Navigation Positioning

中文

湖南城市学院学报(自然科学版)

1672-7304

2020

29

2

56-61

10.3969/j.issn.1672-7304.2020.02.0014

(2017TP2006):湖南省城乡生态规划与修复工程技术研究中心项目

本校为第一机构

电离层闪烁对全球定位系统（GPS）的影响已经被认为是GPS现代化后面临的主要问题.利用低纬地区电离层闪烁监测接收机（18.34°N, 109.62°E）在2012-08-01～31的GPS闪烁数据和观测数据,开展了电离层闪烁对GPS观测值及单点定位的影响研究.研究结果表明,电离层闪烁可以导致GPS卫星信号发生衰减,最大衰减幅度达20 dB-Hz;相比于GPS L1观测值,电离层闪烁对GPS L2影响更大;电离层闪烁可导致周跳的发生,统计表明,每100个强电离层闪烁事件（S4>0.5）可以导致21个周跳发生,而100个弱电离层闪烁事件（0.2

The effect of ionospheric scintillation on Global Positioning System(GPS)has been recognized as a main issue to the modernized GPS.This study of the ionospheric scintillation effects on GPS observations and SPP(single point positioning)is carried out by using the scintillation data and observation data collected by the ionospheric scintillation monitor receiver(18.34 N,109.62 E)installed at the low-latitude region from August 1 to 31 in 2012.The results illustrate that the ionospheric scintillation can result in signal fade of GPS satellite wit...