摘要
针对电离层活跃期现有三频周跳处理方法难以正确探测与修复周跳和阈值设定不合理的问题,借鉴双频TECR算法,提出一种能够削弱电离层延迟影响的三频TECR算法。三频TECR组合与三频码相无几何无电离层组合均能有效削弱电离层延迟对周跳探测的影响,并能自适应地确定合理阈值。利用三频实测数据对算法进行验证的结果表明,该方法能够有效消除电离层延迟影响,实现电离层活跃期周跳的动态探测与修复。
Existing triple-frequency cycle-slip processing algorithms are usually not effective,and the threshold setting may be not reasonable for cycle-slip detection and repair under high ionospheric activity.To solve those problems,the triple-frequency total electron contents rate（TECR）method for whittling ionospheric delay is proposed based on the dual-frequency TECR method.Both the triplefrequency TECR method and triple-frequency code-phase geometry-free and ionospheric-free combination in this algorithm can whittle the influence of ionospheric delay effectively and determine reasonable threshold adaptively.Triple-frequency measured data are used to validate this algorithm,and experimental results showed that this algorithm can whittle ionospheric delay effectively and can realize the detection and repair of cycle-slip dynamically under ionospheric active conditions.
作者
周海涛
程书杨
吴林
ZHOU Haitao CHENG Shuyang WU Lin(Henan Guozhiheng Beidou Technology Co Ltd, 1 Nanxiang Road, Xinyang 464000, China)
出处
《大地测量与地球动力学》
CSCD
北大核心
2017年第11期1166-1172,共7页
Journal of Geodesy and Geodynamics
关键词
电离层活跃期
周跳探测与修复
三频TECR算法
三频码相无几何无电离层组合
阈值
ionospheric active conditions
detection and repair of cycle-slip
triple-frequency TECRalgorithm
triple-frequency geometry-free and ionospheric-free combination
threshold
