桂林理工大学学报2017，Vol.37Issue(1)：120-124,5.DOI:10.3969/j.issn.1674-9057.2017.01.017
改进Klobuchar电离层延迟模型在中国地区的精度评估
Precision assessment of ionospheric delay calculated from improved Klobuchar model in China
摘要
Abstract
Klobuchar model reflects the temporal and spatial variation of the ionosphere basically,but the initial phase and the delay values set at night as a constant value will bring in partial errors.The regional ionospheric model is established by the data from IGS stations in China.The data are used to correct its initial phase,delay values at night and amplitude constantly based on the accuracy of them.Hence,the accuracy and the applicability of the improved model are to be evaluated and analyzed.The results show that the accuracy of Klobuchar model is improved significantly,and can be applied to the establishment of ionospheric model at different temporal and spatial environment in China.关键词
电离层/Klobuchar模型/精度评估/时空环境/冬季异常Key words
ionosphere/Klobuchar model/precision assessment/temporal and spatial environment/winter anomaly分类
天文与地球科学引用本文复制引用
蔡成辉,刘立龙,黎峻宇,林国标,黄良珂..改进Klobuchar电离层延迟模型在中国地区的精度评估[J].桂林理工大学学报,2017,37(1):120-124,5.基金项目
国家自然科学基金项目(41664002 （）
41541032 （）
41064001) （）
广西自然科学基金项目(2015GXNSFAA139230) （2015GXNSFAA139230）
广西空间信息与测绘重点实验室基金项目(15-140-07-11 （）
15-140-07-29) （）
广西“八桂学者”岗位专项经费项目 （）
广西高校中青年教师基础能力提升项目(KY2016YB189) （KY2016YB189）
