本文分析了电离层的变化和运动引起多普勒频移的物理机制，假定了一个包含多种因素的电离层模型。
The mechanism of Doppler frequency shifts resulted from variations and movement of ionosphere is analysed, and a general model for the ionosphere involving several factors is assumed.
磁气圈和电离层之间的能量传递可以靠磁场的变化产生的强大的推动力，而不一定要依赖于行星际磁场方向。
Convection in the magnetosphere and ionosphere can be strongly driven by these fluctuations, independent of the direction of the interplanetary magnetic field.
继而从发电机理论得到了电离层电位及层电流密度在北半球的分布和变化。
Furthermore the distribution and variation of the electrostatic potential and layer ionospheric current density at the northern hemisphere are calculated by the dynamo theory.
继而从发电机理论得到了电离层电位及层电流密度在北半球的分布和变化。
Furthermore, the distribution and variation of the electrostatic potential and layer ionospheric current density at the Northern Hemisphere are calculated by the dynamo theory.
平静状态下电离层总电子含量(TEC)随时间的变化通常可以视为平稳随机过程。
Usually, ionospheric Total Electron Conten (TEC) variation with time can be viewed as a stationary random process under quiet conditions.
针对采用调频连续波(FMCW)体制的天波超视距雷达的应用场合，提出了一种电离层扰动(慢相径变化)补偿改进算法。
This paper presents an improved arithmetic for extracting and compensating the phase-path variations caused by the ionospheric disturbance in a HF sky-wave OTH radar with FMCW waveform.
最后，为了找出电离层电子含量变化规律，记录了当地的天气情况，如气温、气压等。
Finally, in order to find out the change law of the ionospheric electron content, the local weather conditions are recorded, such as temperature, pressure, etc.
太阳耀斑放出的电磁波会引致电离层急剧变化，干扰无线电讯号，大大降低通讯的质素。
Electromagnetic waves produced by solar flares may disturb the ionosphere and interfere with radio signals, resulting in degraded communication quality.
电离层E层的变化相对平缓。
结果表明：海口地区电离层变化具有明显的地域特点。
It shows that the ionospheric variation at HaiKou has an obvious reginal characteristics.
由此看出，磁暴期间电离层tec的变化直接与太阳扰动发生的时间及其对高纬电离层的耦合有关。
It is shown that the TEC variation is associated with the local time the solar perturbing occurred and the coupling of the ionospheric particles of high latitude with the solar particle.
结果表明气象源是电离层变化的重要贡献源。
These results imply that meteorological activity plays an important role in the ionospheric variability.
这些公式把多普勒频移与电离层及不均匀团块的电子密度变化、层和团块的运动速度以及地球磁场强度变化等参数直接联系起来。
By using the formulas, the Doppler shifts are related to the variation of electron density of both the ionosphere and the inhomogeneous mass, to the moving velocity of the layer a...
这些公式把多普勒频移与电离层及不均匀团块的电子密度变化、层和团块的运动速度以及地球磁场强度变化等参数直接联系起来。
By using the formulas, the Doppler shifts are related to the variation of electron density of both the ionosphere and the inhomogeneous mass, to the moving velocity of the layer a...
应用推荐