电离层垂直探测中扰动观测模式研究

Study of disturbance observation mode in ionospheric vertical sounding

电离层高频反射回波的多普勒频移观测是研究电离层扰动的一个重要方法。利用电离层垂直探测中的组合脉冲控制和回波相位测量分析方法,开发并实现了一种电离层扰动观测模式。实验观测表明,新开发的观测模式在电离层高频反射回波为窄带信号的情况下,可实时获得高精度多普勒频高图,并给出电离层扰动速度的时空变化曲线,能够满足电离层扰动观测研究的需要。

Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances. This paper presents and realizes an ionospheric disturbance observation mode by using combinational pulses control and echo＇s phase measurement analysis in ionospheric vertical sound- ing. Experimental results reveal that the new mode can acquire Doppler ionogram with high precision in real time and present temporal and spacial variation curve of the ionospheric disturbance velocity. So it can be used in ionospheric disturbance observation and research.