电离层数字测高仪被动接收观测模式研究

Study of Passive Receiving Observation Mode for Ionospheric Digital Ionosonde

利用CADI(Canadian Advanced Digital Ionosonde)电离层数字测高仪平台,实现了新的电离层数字测高仪被动接收观测模式。利用新开发的观测模式,在观测台站开展了一系列实验观测研究,经过信号处理和信息提取,获得了电离层特征参量f_0F_2回归方程,高频信道背景噪声分布,电离层D层对电波的吸收等电离层探测信息。实验观测结果表明,所获取的f_0F_2与主动探测结果相关性在0.84以上,高频信道背景噪声分布以及电离层D层吸收状况与电离层实际分析结果相吻合。

In order to study ionospheric passive sounding method and technology, this paper realizes a new ionospheric passive sounding mode on the CADI platform. That is to say, this paper improves scan frequency receiving function of CADI＇s receiver, receives various space signals by using the receiver, extracts ionospheric characteristic parameters foF2 and high frequency channel property parameters. The proposal and realization of the new passive sounding mode based on the ionospheric digital ionosonde for the first time not only alleviates the congestion problem of the ionospheric high frequency band, but also provides an economical and effective method for the ionosphere and high frequency channel monitoring. The paper will have an extended application perspective in the space environment monitoring and forecasting.