提高增强系统电离层延迟改正数估计的方法研究  

A Way to Enhance the Ionosphere Delay Estimate of Augment System

作　　者：王明诚 马煦 瞿稳科 

机构地区：[1]北京市5136信箱,北京100094

出　　处：《全球定位系统》2006年第6期10-14,24,共6页Gnss World of China

摘　　要：在对中国建立的GPS广域增强系统相关理论进行分析和研究的基础上,对广域增强系统的组成和基本原理进行了分析和研究,探讨了传统差分增强系统存在的缺点,在汲取已有研究成果和相关理论的基础上,研究了与电离层延迟改正数相关的理论和计算模型,以及在单参考站情况下提高和改善电离层延迟估计的模型和理论方法,设计的算法模型成功实现了电离层延迟和频率间偏差的分离和估计,最后通过对观测数据的分析和仿真处理,验证了设计模型的合理性,取得了预期效果。This paper investigates a GPS Wide-Area Augment System （WAAS） set up in China. The component and theory of WAAS are studied too. The disadvantage of traditional difference system was investigated. Based on the fruits and relation theory, the arithmetic of ionosphere delay was provided. The model to improve the precision of ionosphere delay in single reference station was raiseck In this way the ionosphere delay and frequency offset was separated, and the estimation was also realized. In the end, according to the real data accumulating, analyzing, processing, the new model was validated, and a valuable conclusion is obtained.

关 键 词：广域增强系统 电离层延迟 频率间偏差 载波相位平滑伪距 

分 类 号：P207[天文地球—测绘科学与技术]