区域卫星导航系统硬件延迟解算

基金项目: 国家863计划资助项目(2009AA12206);中国科学院方向性课题资助项目(Y186601002YYYJ-1110);武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金资助项目<sup>1</sup>1-01-11)

详细信息

Hardware Delay Solution of Regional Satellite Navigation System

¹ Shanghai Astronomical Observatory,Chinese Academy of Sciences,80 Nandan Road,Shanghai 200302,China;² Beijing Global Information Center of Application and Exploration,22 Beiqing Road,Haidian District,Beijing 100094,China

Funds: 国家863计划资助项目(2009AA12206);中国科学院方向性课题资助项目(Y186601002YYYJ-1110);武汉大学地球空间环境与大地测量教育部重点实验室测绘基础研究基金资助项目<sup>1</sup>1-01-11)

摘要: 从区域卫星导航系统的实际情况出发,针对我国星座和地面站分布的特点,提出了区别于GPS的硬件延迟解算策略。首次利用实测数据分析论证了该解算策略,根据解算结果对卫星的TGD参数出厂标定值和接收机IFB参数进行修正。修正之前电离层14参模型解算内符合精度只有50%,修正之后达到70%。
- 硬件延迟 /
- 电离层 /
- 约束条件 /
- Klobuchar模型
Abstract: There is a new challenge for getting parameters of ionosphere model with high accuracy under the limited distribution of regional monitoring network.The VTEC of puncture points can be obtained by re-process the data after fixing the hardware delay,then the regional ionosphere model would be estimated.This strategy differs significantly from GPS global ionosphere solution strategy.In this paper the strategy of getting parameters of ionosphere model under the limited distribution of regional monitoring network is discussed in detail,the possible accuracy of this method is analyzed,and the improvement is proposed.
- hardware delay /
- ionosphere /
- constraints /
- Klobuchar model