| 电离层不规则结构的多普勒谱特性 |
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| 引用本文： | 宁百齐,李钧.电离层不规则结构的多普勒谱特性[J].空间科学学报,1996,16(1):36-42. |
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| 作者姓名： | 宁百齐 李钧 |
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| 作者单位： | 中国科学院武汉物理研究所 |
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| 摘 要： | 利用武汉电离观象台连续５年的高频多普勒记录，研究电离层中不规则结构反射回波的各种频谱特性及其变化，通常，扩展Ｆ回波总是引起扩散的多普勒谱。而Ｅｓ回波的多普勒图白天一般呈平直光滑谱，晚上变得扩散，其多普勒展宽常比未扩散时大２－３倍，达１Ｈｚ以上。
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| 关 键 词： | 电离层 不规则结构 多普勒频谱 |
DOPPLER SPECTRUM OF IONOSPHERIC IRREGULARITIES |
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| Ning Bat-qi,Li Jun.DOPPLER SPECTRUM OF IONOSPHERIC IRREGULARITIES[J].Chinese Journal of Space Science,1996,16(1):36-42. |
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| Authors: | Ning Bat-qi Li Jun |
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| Abstract: | The doppler spectra of ionospheric irregularities have been analyzed by usingfive years HF doppler records at Wuhan Ionospheric Observatory. Usually, thedoppler spectra of spread F are always diffusive, while the spectra of Es showsmooth straight line daytime, and become diffusive in the night. The meandoppler spread of scattering echoes is 2 or 3 times more than that of normalechoes. Moreover, one type of slant striated doppler spectrum associated with thedrift of ionized clouds in Es or spread F is also discussed in this paper. |
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| Keywords: | Ionospheric irregularities Doppler spectrum |
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