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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 whole situation of ionosphere in Guangdong is introduced. The method of extracting TEC from GPS data is discussed. The TEC value extraction based on Guangzhou CORS observation data is realized. The influence of hardware delay is discussed and the validity of inversion is validated. In addition, combined with the solar activity index, the change law of ionosphere in Guangzhou area from 2009 to 2011 was analyzed. The average daily TEC and daily maximum TEC peaked in spring and autumn, and increased with the increase of solar activity. The daily minimum TEC Affected by solar activity, change is small.