... Doppler-free two-photon spectroscopy 无多普勒双光子光谱学 Doppler-shifted reflection 多普勒频移反射 doran 多普勒测距系统 ...
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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。
Doppler frequency shift observation of ionospheric high frequency echo is an important method for studying ionospheric disturbances.
在此基础上得到电离层反射信号的多普勒频移公式以及穿过电离层的信号的多普勒频移公式。
The formulas of Doppler shift due to the reflected signal and that travelling through the ionosphere are thus derived.
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