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首页> 外文会议>International symposium on atmospheric and ocean optics: atmospheric physics >Possibility of correcting ionospheric model, using data from single- frequency receivers of global navigation satellite systems
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Possibility of correcting ionospheric model, using data from single- frequency receivers of global navigation satellite systems

机译：利用全球导航卫星系统单频接收机的数据来校正电离层模型的可能性

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This report describes a method for estimating ionospheric signal delay for pseudorange GNSS measurements made with a single-frequency receiver. To reduce the influence of the instability of the time scale of the receiver, we determine the difference between magnitudes of ionospheric delay of signals from two satellites at one time. To eliminate random fluctuations from the difference, we average data over a period from 30 to 60 minutes. Numerical simulation is carried out to determine the influence of a change in the critical frequency and height of the ionospheric maximum on pseudorange. It is shown that under favorable conditions variations in the ionospheric delay difference can be used to correct the ionospheric model that reflects hourly variations in its parameters. We study a method for determining current values of critical frequencies of the ionosphere for a regional correction of its model.
机译：该报告介绍了一种估算单频接收机进行伪距GNSS测量的电离层信号延迟的方法。为了减少接收器时间尺度的不稳定性的影响，我们确定一次来自两个卫星的信号的电离层延迟大小之间的差异。为了消除差异的随机波动，我们对30到60分钟内的数据进行平均。进行数值模拟以确定临界频率和电离层最大值的高度变化对伪距的影响。结果表明，在有利条件下，电离层延迟差异的变化可用于校正反映其参数每小时变化的电离层模型。我们研究了一种确定电离层临界频率当前值的方法，以对其模型进行区域校正。

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