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An application of GPS dual frequency codeless receiver for ionospheric delay to single frequency VLBI observation

机译:GPS双频无电离层电离接收机在单频VLBI观测中的应用

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A dual-frequency codeless Global Positioning System (GPS) receiver for measuring ionospheric delay, called GTR-2, has been developed. Results of a feasibility study of using GTR-2 for single-frequency very-long-baseline interferometry (VLBI) experiments are presented. GTR-2 uses a cross-correlation property of the P-code signals transmitted from GPS satellites to measure ionospheric total electron content (TEC) with a measurement uncertainty of about 2*10/sup 16/ electrons/m/sup 2/ along the line of site to the satellite. Ionospheric compensation of the signal from radio stars is studied using the TEC data obtained from GTR-2.
机译:已经开发出一种用于测量电离层延迟的双频无代码全球定位系统(GPS)接收机,称为GTR-2。提出了使用GTR-2进行单频超长基线干涉测量(VLBI)实验的可​​行性研究结果。 GTR-2使用从GPS卫星传输的P码信号的互相关特性来测量电离层总电子含量(TEC),沿该方向的测量不确定度约为2 * 10 / sup 16 /电子/ m / sup 2 /。卫星的站点线。使用从GTR-2获得的TEC数据研究了射电星信号的电离层补偿。

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