中國地區(qū)人工加熱電離層產(chǎn)生的極低頻電流預(yù)測
ESTIMATION OF THE ELF CURRENT PRODUCED BY HEATING THE IONOSPHERE ARTIFICIALLY IN CHINA AREA
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摘要: 文中用實(shí)際的電離層參數(shù),具體地估算了在典型發(fā)射條件下,極低頻脈沖調(diào)制的高頻電波加熱北京、上海、海口上空電離層所能產(chǎn)生的極低頻電流強(qiáng)度。計(jì)算的出發(fā)點(diǎn)是電子的能量方程,運(yùn)用迭代法對處理脈沖調(diào)制問題作了改進(jìn)。用此算法同時(shí)研究了典型中緯度電離層的加熱特性并與以往對高緯度的結(jié)果進(jìn)行了比較。
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關(guān)鍵詞:
- 電離層; 人工加熱; 極低頻; 中國
Abstract: The strengths of the ELF currents produced by heating the iono-spheres over Beijing, Shanghai and Haikou by powerfully modulated HF wave are calculated under a typical transmitting condition, using the practical parameters of the ionospheres. The start point of the calculation is the electron energy equation, however, a new iterative method is developed to treat the pulse modulation. This algorithm is also applied to study the heated properties of the ionosphere at typical middle latitudes and the results are compared with that by previous authors for high latitudes. -
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