| 短波信道频率相对时延的实测分析 |
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| 引用本文： | 邹显炳,李少谦.短波信道频率相对时延的实测分析[J].电子科技大学学报(社会科学版),2003(5). |
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| 作者姓名： | 邹显炳 李少谦 |
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| 作者单位： | 电子科技大学通信抗干扰技术国家级重点实验室，电子科技大学通信抗干扰技术国家级重点实验室 成都 610054，成都 610054 |
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| 摘 要： | 利用电离层斜向探测系统分别对三条短波路径进行了时延测试,在单模传播数据曲线拟合的基础上,计算了短波信道频率相对时延值,重点分析了电离层单模传播情况下频率相对时延与频率间隔、传播路径及工作频率的变化特征。分析表明短波跳频系统在单模工作时,中午时段的频率相对时延最大,跳频频点间隔越小、路径越大频率相对时延的影响越小。
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| 关 键 词： | 短波 斜向探测 单模传播 频率相对时延 |
Measurements and analysis of Frequency Relative Time Delay(FRTD) on HF Channel |
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| Zou Xianbing Li Shaoqian.Measurements and analysis of Frequency Relative Time Delay(FRTD) on HF Channel[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),2003(5). |
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| Authors: | Zou Xianbing Li Shaoqian |
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| Abstract: | This paper presents the results of HF channel time delay measurements on 580 km, 940 km and 1 380 km paths using oblique ionospheric sounder equipment, and gives a curve fitting data processing methods to deal with measurements data of single mode. The variety characteristics of single mode FRTD is discussed on the basis of analysis of calculating results, it indicates that the FRTD values decrease with frequency interval getting small and paths distance increasing, the maximum FRTD value in a day appears at noon. |
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| Keywords: | shortwave oblique ionospheric sounder frequency relative time delay single mode propagation |
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