| 区域短波通信台网选频的研究 |
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| 引用本文： | 赵晖,陈蕊,谢健健,韩艳杰,高酉晨.区域短波通信台网选频的研究[J].山西地震,2001(4):40-42. |
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| 作者姓名： | 赵晖 陈蕊 谢健健 韩艳杰 高酉晨 |
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| 作者单位： | 河南省地震局 |
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| 摘 要： | 河南省地震局短波通信台网的工作频率被限制在短波的低频段，受干扰严重，中心台又位于市中心，环境噪声电平很高，加之，局网内可用的电台大部分发射功率小、抗干扰性能差。这些因素给通信台网的工作频率选择带来困难。为提高区域通信的质量，在对短波电离层信道传播特性进行分析的基础上，结合本地大气噪声和环境噪声的实际情况，对河南省地震局通信网的选频问题进行了研究，给出了选频的原则和方法，介绍了选频试验的结果和体会。
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| 关 键 词： | 环境噪声 太阳黑子 区域地震台网 工作频率 电离层 大气噪声 |
| 文章编号： | 1000-6265(2001)04-0040-03 |
| 修稿时间： | 2001年8月8日 |
Short-wave Frequency Selection for Regional Communication Station |
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| ZHAO Hui,CHEN Rui,XIE Jian- jian,HAN Yan- jie,GAO You- chen.Short-wave Frequency Selection for Regional Communication Station[J].Earthquake Research in Shanxi,2001(4):40-42. |
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| Authors: | ZHAO Hui CHEN Rui XIE Jian- jian HAN Yan- jie GAO You- chen |
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| Abstract: | The working frequency is restricted to low frequency band for the short- wave communication network of Seismological Bureau of Henan Province.Itis difficult to selectthe working frequency for communication network due to the high environmental noise,low emissive power and low anti- noise feature of communication equipment.Based on the analysis of short- wave transmission specialty in ionosphere and local noise caused by atmosphere and environment,the study on short- wave frequency selection for regional communication station was made.In this paper,the principle and method for frequency selection are given.The result and the experience in frequency selection practice are introduced also. |
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| Keywords: | Environmental noise Sunspot Regional seismic network Working frequency Ionosphere |
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