klobuchar电离层改正模型精度验证---定稿.pdf

题目 Klobuchar 电离层改正模型精度验证
学院测绘科学与技术学院
专业及班级测绘工程测绘 1105
姓名林清莹
学号 1110020509
指导教师陈鹏
日期 2015 年 6 月 16 日








第 1 页
摘要

Klobuchar 电离层改正模型是 GPS 单频接收机的电离层时延改正的方法,经过多年的观
测验证,klobuchar 模型被广泛认为是一种计算方便、实用可靠的电离层时延改正的有效算
法。本文利用 2014 年 IGS 电离层格网数据来验证利用 GPS 导航电文中的电离层参数计算
的 klobuchar 模型精度。通过计算天、月份、季度的均值、最大值、最小值等数据来验证
klobuchar 模型时间上的精度;计算不同纬度和经度上的均值、最大值、最小值等数据来验
证空间上的精度。验证的结果表明:klobuchar 模型时间上从月份看六月区域的精度最好,
从季度看夏季和秋季的精度比较高;空间上在中高纬度范围内精度较高,经度上在西半球
的精度较高。

关键字: klobuchar 模型,电离层,精度验证




















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ABSTRACT


Klobuchar ionospheric correction model is the method of ionospheric delay correction of
Single frequency GPS receiver . After many years of testing and observation, Klobuchar model is
widely considered to be a convenient, practical and reliable to calculate the effective algorithm of
ionospheric delay correction. in this paper, we calculated ionospheric delay of klobuchar
model by using GPS data of 365 days of 2014, we verify the precision of the klobuchar model
by considerating the ionospheric delay of IGS sites to be right。By calculating the mean ,the
maximum and minimum of day, month, quarter to validate the precision of the time of klobuchar
model,calculating mean ,maximum , minimum of different latitude and longitude to validate the
precision of the space. The results show that:among 12 months,the best precision of year is June ,
among 4 quarters of a year, the precision of the summer and autumn of year are quite high;in
Space ,mid-high latitude precision in the scope is better,about longitude in the western hemisphere
is better.


KEY WORDS:Klobuchar Model Ionosphere Precision test















第 3 页
目录

第 1 章绪论.................................................................................................................................................................. 1
背景及意义....................