基于电离层电子含量变化率的周跳探测方法  

Cycle Slip Detection Method based on the Ionosphere Total Electron Content Rate

作　　者：崔建勇[1] 陈明剑[1] 雷娜娜[2] 

机构地区：[1]信息工程大学测绘学院,河南郑州450052 [2]郑州大学信息工程学院,河南郑州450000

出　　处：《全球定位系统》2012年第3期37-40,52,共5页Gnss World of China

基　　金：国防预研项目(编号:9140A22040809JB52)

摘　　要：推导了利用GNSS双频数据的基于电离层电子含量(TEC)变化率的周跳探测方法,分析了电离层平静期和活跃期的TEC变化率,并认为对1s采样率的数据来说无论是否发生电磁暴都不影响TEC变化率法的使用,通过实验证明TEC变化率法能对1s采样率数据中的、其它周跳探测方法较难探测的小周跳进行探测,而联合利用TEC变化率法和MW法可对各自不敏感的周跳组合进行有效探测,实验证明:联合法对电离层平静期和活跃期中、采样间隔为1s的数据中的周跳都具有很高的探测成功率。The ionosphere electron content （TEC） rate cycle slip detection method is de- rived, in which the GNSS dual frequency data were used. The TEC rate was discussed in i- onosphere quiet period and ion electromagnetic storm. The TEC rate can＇t effort the algo- rithm for the 1 Hz data even the electromagnetic storms happen. The experiment proved that this method has better detection accuracy due to the cycle slips which were more difficult to other methods. In order to detect some cycle slips which are not sensitive to the TEC rate method, The MW method can be combined with for joint detection, and the experiments show that the combined method has a very high detection success rate of cycle slips in the 1 Hz data regardless of the electromagnetic storms happened.

关 键 词：全球卫星导航系统 电离层 总电子含量 周跳 

分 类 号：P228.4[天文地球—大地测量学与测量工程]