从LOFAR核心测量确定电离层漂移和不规则的各向异性

2021 Signal Processing Symposium (SPSympo) Pub Date : 2021-09-20 DOI:10.1109/spsympo51155.2020.9593828

M. Grzesiak, M. Pożoga, B. Matyjasiak, D. Przepiórka, H. Rothkaehl

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引用次数: 0

摘要

我们采用散射演化的冻结假设，推导出观测衍射图样的时空相关函数特征的简单公式。利用低频阵列(LOFAR)观测仙后座强度，定性地验证了上述假设，并计算了三种不同地球物理条件下的衍射图样速度。结果使我们能够将估计的数量归因于电离层的不规则性。

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Determining ionospheric drift and anisotropy of irregularities from LOFAR core measurements

We take the frozen-in assumption of the scatter evolution and derive simple formulas for characteristics of the spatiotemporal correlation function of the observed diffraction pattern. Using Low-Frequency Array (LOFAR) Cassiopeia intensity observation, we can validate the assumptions qualitatively and compute diffraction pattern velocities for three different geophysical conditions. The results allow us to attribute estimated quantities to ionospheric irregularities.

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2021 Signal Processing Symposium (SPSympo)

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