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GPS信号的多普勒效应分析 总被引：1，自引：1，他引：0
给出了GPS信号多普勒效应以及利用多普勒观测量计算电离层总电子含量的计算公式。利用这些公式及GPS接收机的多普勒观测量对运动多普勒和电离层引起的介质多普勒进行了分析，给出了利用多普勒观测量计算的电离层总电子含量。结果表明：GSP的运动多普勒在正负几千赫兹之间，与运动多普勒相比，GPS信号的介质多普勒要小得多，其量级在10^-2赫兹；利用GPS多普勒观测量可计算电离层总电子含量，其相对变化精度要高于利用伪距观测量的计算结果，但低于利用伪距＋载波相位观测量的计算结果。 相似文献
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A thermospheric circulation model in meridian plane (TCMMP) is introduced and a case study on the variations in night side thermosphere caused by energy deposition in auroral oval during a single magnetic substorm is expounded. Calculations show that TCMMP can correctly reflect the thermospheric thermal status and circulation patterns during storm time and the results are in agreement with previous theoretical and observational ones. This paper and other works also show the validity of TCMMP in researches on medium and large scale changes in mid- and low latitude thermosphere. Results also support strongly some related theory about the cause of ionospheric storms, expecially the negative phase storms. 相似文献
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