Volume 37 Issue 1
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YANG Ding, FANG Hanxian, MA Qiang, WANG Sicheng. Effects of Pre-heating Time on Pre-heating Amplitude-modulation in the Lower Ionosphere[J]. Chinese 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]. Chinese Journal of Space Science, 2017, 37(1): 59-66. doi: 10.11728/cjss2017.01.059
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Effects of Pre-heating Time on Pre-heating Amplitude-modulation in the Lower Ionosphere

doi: 10.11728/cjss2017.01.059 cstr: 32142.14.cjss2017.01.059

  • 1. Institute of Meteorology and Oceanography, PLA University of Science and Technology, Nanjing 211101;

  • 2. State Key Laboratory of Space Weather, National Space Science Center, Chinese Academy of Sciences, Beijing 100190

  • Received Date: 2015-11-05
  • Rev Recd Date: 2016-05-23
  • Publish Date: 2017-01-15
    Abstract
  • Based on the energy conservation equation and electron continuity equation, the pre-heating amplitude-modulated theoretical model for the lower ionosphere is established. Then, the oscillations process of ionospheric conductivity and current, which amplitude are modulated by high power electric wave are simulated. Furthermore, the effects of pre-heating time on Extremely Low Frequency/Very Low Frequency (ELF/VLF) radiation levels are studied thoroughly. The results indicate that the electric current in the lower ionosphere can be modulated effectively by high power electric wave, and can be used as the radiation source of ELF/VLF. The longer the pre-heating time is, the more effectively the pre-heating amplitude-modulated model is. If taking the energy loss into account, as the heating conditions are PER=200MW and fELF/VLF=1kHz, the effect of ELF/VLF radiation with the pre-heating amplitude-modulated model is the best when the pre-heating time is 0.1s. And the ELF/VLF radiation levels are improved by 7.95dB.

     

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    • References(16)
  • [1]
    Willis J W, Davis J R. Radio frequency heating effects on electron density in the lower e region[J]. J. Geophys. Res., 1973, 78(25):5710-5717
    [2]
    GETMANTSEV G G, ZUIKOV N A, KOTIK D S, et al. Combination frequencies in the interaction between high-power short-wave radiation and ionospheric plasma[J]. JETP Lett., 1974, 20:101-102
    [3]
    BARR R, STUBBE P, KOPKA H. Long-range detection of VLF radiation produced by heating the auroral electrojet[J]. Radio Sci., 1991, 26(4):871-879
    [4]
    LI Qingliang, YANG Jutao, YAN Yubo, et al. ELF/VLF waves radiated by modulated HF heating ionospheric in mid-latitude and equatorial regions[J]. Chin. J. Radio Sci., 2008, 23(5):883-887(李清亮, 杨巨涛, 闫玉波, 等. 中低纬调制高频加热电离层ELF/VLF辐射模拟[J]. 电波科学学报, 2008, 23(5):883-887)
    [5]
    WANG Fen, ZHAO Zhengyu, CHANG Shanshan, et al. Ray tracing of extremely low frequency waves radiated from ionospheric artificial modulation at low latitude[J]. Acta Phys. Sin., 2012, 61(19):551-558(汪枫, 赵正予, 常珊珊, 等. 低纬电离层人工调制所激发的ELF波射线追踪[J]. 物理学报, 2012, 61 (19):551-558)
    [6]
    PAPADOPOULOS K, CHANG C L, VITELLO P, et al. On the efficiency of ionospheric elf generation[J]. Radio Sci., 1990, 25(6):1311-1320
    [7]
    VILLASEÑOR J, WONG A Y, SONG B, et al. Compa-rison of ELF/VLF generation modes in the ionosphere by the HIPAS heater array[J]. Radio Sci., 1996, 31 (1):211-226
    [8]
    MILIKH G M, PAPADOPOULOS K. Enhanced ionospheric ELF/VLF generation efficiency by multiple timescale modulated heating[J]. Geophys. Res. Lett., 2007, 34(20):606-626
    [9]
    HAO Shuji, LI Qingliang, YANG Jutao, et al. Theory and simulation of ionospheric pre-heating amplitude modulated heating mode[J]. Chinese. J. Radio Sci., 2013, 28(2):231-236(郝书吉, 李清亮, 杨巨涛, 等. 电离层预加热幅度调制模式的理论与模拟[J]. 电波科学学报, 2013, 28(2):231-236)
    [10]
    GUREVICH A V. Nonlinear phenomena in the ionosphere[J]. Radiophys. Quant. Electron., 1976, 19 (6):595-597
    [11]
    MENG Xing, FANG Hanxian. Preliminary simulation of heating effects of the lower ionosphere in Nanjing Dis-trict[J]. Chin. J. Geophys., 2014, 57(11):3642-3649(孟兴, 方涵先.南京地区低电离层加热效应的初步模拟[J]. 地球物理学报, 2014, 57(11):3642-3649)
    [12]
    WANG Sicheng, FANG Hanxian, YANG Shenggao, et al. Heating the lower ionosphere by powerful high frequency radio wave[J]. Chin. J. Space Sci., 2012, 32(6):818-823(汪四成, 方涵先, 杨升高, 等.大功率无线电波加热低电离层[J]. 空间科学学报, 2012, 32(6):818-823)
    [13]
    STUBBE P, KOPKA H. Modulation of the polar electrojet by powerful HF waves[J]. J. Geophys. Res., 1977, 82 (16):2319-2325
    [14]
    PASHIN A B, BELOVA E G, LYATSKY W B. Magnetic pulsation generation by a powerful ground-based modulated HF radio transmitter[J]. J. Atmos. Terr. Phys., 1995, 57(93):245-252
    [15]
    BILITZA D, REINISCH B W. International Reference Ionosphere 2007:improvements and new parameters[J]. Adv. Space Res., 2008, 42:599-609
    [16]
    PICONE J M, HEDIN A E, DROB D P, et al. NRLMSISE-00 empirical model of the atmosphere:statistical comparisons and scientific issues[J]. J. Geophys. Res, 2012, 107 (12):125-154
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