脉冲调制可以用来控制偏置电压和电离。
Pulse modulation may be used to control a bias voltage and an ionization.
这种模式是非常敏感的电离层多普勒调制。
This mode is very sensitive to the ionospheric Doppler modulation.
电离层频率调制导致地表面杂波的多谱勒展宽，极大地限制了高频天波雷达的目标探测性能。
Ionospheric frequency modulation causes spreading of the surface clutter in Doppler domain which greatly limits the detection performance of HF sky-wave radars.
对于特定的方波调制模式和典型的电离层条件下，振荡过程中电离层的导电性和电喷详细地研究。
For specific square wave modulation modes and typical ionospheric conditions, oscillations process of ionospheric conductivity and electrojet are studied in details.
磁离子理论，自洽的人工调制强大的HF无线电波电离层的电喷模型。
In terms of magneto-ionic theory, a self-consistent model of ionospheric electrojet artificially modulated by powerful HF radio waves is presented.
磁离子理论，自洽的人工调制强大的HF无线电波电离层的电喷模型。
In terms of magneto-ionic theory, a self-consistent model of ionospheric electrojet artificially modulated by powerful HF radio waves is presented.
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