基于广州CORS的电离层反演及分析  

Ionospheric inversion and analysis based on Guangzhou CORS

作　　者：杨崴[1] 罗峰[1] 

机构地区：[1]广州市城市规划勘测设计研究院,广州510060

出　　处：《工程勘察》2015年第9期72-75,89,共5页Geotechnical Investigation & Surveying

基　　金：中国极地战略研究基金资助项目(20110205)

摘　　要：介绍了广东地区电离层整体情况,讨论了利用GPS数据提取TEC的方法,实现了基于广州CORS观测数据的TEC值提取,讨论了硬件延迟的影响,并验证反演的有效性。另外,结合太阳活动指数,分析了2009~2011年广州地区的电离层变化规律,日均TEC和日最大TEC在春季和秋季出现峰值,且随着太阳活动的增强而增强;日最小TEC基本不受太阳活动影响,变化很小。The overall situation of ionosphere in Guangdong area is introduced, the method of extracting TEC by using GPS data is discussed. TEC is extracted by using Guangzhou CORS observations, the hardware delay is discussed and the inversion is validated. In addition, combined with solar activity index, ionospheric variations of Guangzhou in 2009 - 2011 are analyzed. Daily average TEC and daily maximum TEC reach peak in spring and autumn, and the peak amplitude becomes larger with the increase of solar activity. Minimum daily TEC is relative stable due to be insusceptible to the solar activity.

关 键 词：CORS 电离层 TEC 硬件延迟 

分 类 号：P228.4[天文地球—大地测量学与测量工程]