由于地面电离层多普勒频率偏移测量具有时间连续、设备相对简便等固有特征，它特别适合于扰动监测。

The measurements of HF Doppler shift in the ionosphere have long been a powerful tool in monitoring the ionospheric disturbances due to its features of continuity in time and simplicity.

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针对单星测向定位中干涉仪设备复杂、卫星姿态测量要求高等不足，提出了一种基于多普勒变化率的单星无源定位方法。

Due to the complexity of the interferometers and high requirement of satellite attitude, a method of passive localization based on Doppler rate-of-change of single satellite channel is presented.

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