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预加热时间对低电离层预加热幅度调制的影响

杨鼎 方涵先 马强 汪四成

杨鼎, 方涵先, 马强, 汪四成. 预加热时间对低电离层预加热幅度调制的影响[J]. 空间科学学报, 2017, 37(1): 59-66. doi: 10.11728/cjss2017.01.059
引用本文: 杨鼎, 方涵先, 马强, 汪四成. 预加热时间对低电离层预加热幅度调制的影响[J]. 空间科学学报, 2017, 37(1): 59-66. doi: 10.11728/cjss2017.01.059
YANG Ding, FANG Hanxian, MA Qiang, WANG Sicheng. Effects of Pre-heating Time on Pre-heating Amplitude-modulation in the Lower Ionosphere[J]. Journal of Space Science, 2017, 37(1): 59-66. doi: 10.11728/cjss2017.01.059
Citation: YANG Ding, FANG Hanxian, MA Qiang, WANG Sicheng. Effects of Pre-heating Time on Pre-heating Amplitude-modulation in the Lower Ionosphere[J]. Journal of Space Science, 2017, 37(1): 59-66. doi: 10.11728/cjss2017.01.059

预加热时间对低电离层预加热幅度调制的影响

doi: 10.11728/cjss2017.01.059
基金项目: 

国家自然科学基金项目资助(40505005)

详细信息
    通讯作者:

    杨鼎,E-mail:yangdhover@163.com

    方涵先,E-mail:fanghxp@163.com

  • 中图分类号: P352

Effects of Pre-heating Time on Pre-heating Amplitude-modulation in the Lower Ionosphere

  • 摘要: 基于电离层连续方程和能量方程,建立预加热模式下低电离层幅度调制加热理论模型,模拟大功率电波幅度调制电离层电导率和电流随时间的变化,分析预加热时间对幅度调制产生的极低频/甚低频(ELF/VLF)强度的影响.结果表明,低电离层中的电流能够被大功率电波有效调制,可以作为ELF/VLF电波的辐射源.预加热幅度调制模式在预加热时间较长时效果更明显.在考虑能耗的情况下,当有效辐射功率为200MW及高频波的调制频率fELF/VLF为1kHz时,预加热幅度调制模式辐射ELF/VLF加热0.1s时效果最好,强度可提高约7.95dB.

     

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出版历程
  • 收稿日期:  2015-11-05
  • 修回日期:  2016-05-23
  • 刊出日期:  2017-01-15

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