论文标题
一种基于雷达的空间监视系统的简单电离层校正方法,对Graves数据进行绩效评估
A simple ionospheric correction method for radar-based space surveillance systems, with performance assessment on GRAVES data
论文作者
论文摘要
电离层效应降低了雷达数据的质量,这对于由太空监视系统产生的卫星埃菲米尔人的精度至关重要;对于在非常高频率范围内运行的坟墓等雷达,这种降解尤其明显。本文提出了一种简单有效的方法来校正电离层效应,并对使用法国空间监视雷达Graves获得的数据进行了评估。此方法依赖于GPS数据,我们的评估依赖于Graves和Doris数据。我们发现,从评估的径向速度方面的增长可以高达1.76 $κ$,其中$κ$是坟墓的径向速度测量值的典型根平方(不包括电离层效应):误差从2.60 $κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$κ$ for Daytime Time Time Time Time Timper Satellite Passesses。我们的结论是,尽管这种方法非常易于实施,但事实证明,它是实践中电离层效应的良好纠正。
Ionospheric effects degrade the quality of radar data, which are critical for the precision of the satellite ephemeris produced by space surveillance systems; this degradation is especially noticeable for radars such as GRAVES that operate in the very high frequency range. This article presents a simple and effective method to correct for ionospheric effects, with an evaluation on data obtained with GRAVES, the French space surveillance radar. This method relies on GPS data, and our evaluation relies on GRAVES and DORIS data. We found that the gain in terms of evaluated radial velocity can be as high as 1.76$κ$, where $κ$ is the typical root mean square of the noise on radial velocity measurements for GRAVES (excluding ionospheric effects): the error decreases from 2.60$κ$ to 0.83$κ$ for daytime satellite overhead passes. Our conclusion is that, while this method is very simple to implement, it has proven to be a good correction for ionospheric effects in practice.