| 利用GPS技术实时监测上海区域电离层变化 |
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| 引用本文： | 王虎,王解先,白贵霞,朱卫东.利用GPS技术实时监测上海区域电离层变化[J].空间科学学报,2011,31(5):602-606. |
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| 作者姓名： | 王虎 王解先 白贵霞 朱卫东 |
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| 作者单位： | 1.同济大学测量与国土信息工程系 上海 200092 |
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| 基金项目： | 国家自然科学基金项目资助(40974018) |
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| 摘 要： | 基于GPS技术实时监测电离层变化原理, 利用载波平滑伪距观测值建立区域电离层模型的方法, 计算了电离层延迟量和硬件延迟, 根据硬件延迟值相对稳定的特点, 采取一定时段求解出硬件延迟量, 对实时硬件延迟量进行预报, 进而实时分离GPS信号传播路径上的垂直总电子含量VTEC. 利用上海区域内的GPS网的观测数据, 建立实时上海区域电离层延迟模型, 监测上海区域的电离层变化. 数据分析结果表明, 这种方法的内符合精度优于3 TECU.
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| 关 键 词： | GPS 载波平滑伪距 电离层模型 硬件延迟 |
| 收稿时间： | 2010-08-21 |
Real-time Monitoring of Ionosphere Changes in the Shanghai Region by GPS Technology |
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| WANG Hu WANG Jiexian BAI Guixia ZHU Weidong.Real-time Monitoring of Ionosphere Changes in the Shanghai Region by GPS Technology[J].Chinese Journal of Space Science,2011,31(5):602-606. |
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| Authors: | WANG Hu WANG Jiexian BAI Guixia ZHU Weidong |
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| Institution: | 1.Department of Surveying and Geo-informatics, Tongji University, Shanghai 2000922.Key Laboratory of Modern Engineering Surveying, State Bureau of Surveying and Mapping, Shanghai 2000923.Shanxi Bureau of Surveying, Xi’an 710054 |
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| Abstract: | A method of real-time monitoring ionosphere based on GPS technology is described in this paper.The regional ionosphere model is constructed using GPS phase-smoothed pseudorange measurements.The ionosphere delay and instrumental bias are also calculated.Because the instrumental bias is stable,its value can be obtained after a period of time.Using this value,realtime instrumental bias can be forecasted.After deducted the instrumental bias from GPS signal, the real-time ionosphere information can be extracted ... |
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| Keywords: | Global Position System(GPS) Phase-smoothed pseudo-range Ionosphere model Instrumental biases |
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