| 被动式电离层信道参量实时探测系统 |
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| 引用本文： | 刘竹林,高清.被动式电离层信道参量实时探测系统[J].电子科技大学学报(社会科学版),1991(2). |
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| 作者姓名： | 刘竹林 高清 |
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| 作者单位： | 中国电波传播研究所
(刘竹林)，中国电波传播研究所(高清) |
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| 摘 要： | 利用国内外授时台的发射信号探测电离层信道的过程,给出了这个工作系统的硬件组成框图,阐述了信道参量同误码率的关系,给出了描述电离层信道特性的系统函数表达式和关系图,同时分析了无线时变信道特性。文中叙述了用贝勒包络法和复包络法测量多径展宽的具体实现过程,对多径展宽,多普勒展宽和每条电路上信噪比的探测过程和方法进行了详述。这套工作系统在作为短波信道探测仪的同时,又可作为干扰噪声监测仪。
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| 关 键 词： | 散射函数 信道特性 多径展宽 多普勒展宽 授对台 |
PASSIVE IONOSPHERE CHANNELS PARAMETERS REAL-TIME MEASURING SYSTEM |
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| Liu Zhulin,Gao Qing.PASSIVE IONOSPHERE CHANNELS PARAMETERS REAL-TIME MEASURING SYSTEM[J].Journal of University of Electronic Science and Technology of China(Social Sciences Edition),1991(2). |
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| Authors: | Liu Zhulin Gao Qing |
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| Institution: | China Rescarch Institute of Radiowave Propagation |
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| Abstract: | This paper describes working course for measuring the ionosphere chan-nels parameters of a system by transmitting signals of time frequency service station ininternal and abroad.The system composition figure is presented.A interrelation in chan-nels parameters and bit error rate is expound.The system function of describing theionosphere channels characteristics and its interrelation figure is presented,and the character-istics of radio time variant linear channels is analyzed.A detailed course of measuringmultipath spread by Bello envelop method and plural envelop method represented here.The measuring course for multipath spread,Doppler spread and signal ratio noise is des-cribed at length.The working system can be used as a short wave channels detector andinterference detector. |
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| Keywords: | scattering function channels characteristics multipath spread Doppler spread time frequency service station |
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