| 湛江数字地震台DDN与卫星传输对比分析 |
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| 引用本文： | 林伟,吴叔坤,吴永权.湛江数字地震台DDN与卫星传输对比分析[J].华南地震,2004,24(2):69-74. |
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| 作者姓名： | 林伟 吴叔坤 吴永权 |
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| 作者单位： | 广东省地震局,广东,广州,510070 |
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| 摘 要： | 为解决湛江数字地震台自2000年1月正式投入运行以来一直存在的丢数、断记、误码率和故障率较高的问题，2002年该台站架设了卫星小站，并于2003年6月15日开始进行DDN传输与卫星传输的对比，通过139天的对比表明，DDN信号仍然很差，运行率只有96．50％；而卫星信号则无误码，中断较少，运行率高达99．65％。完全可利用卫星传输方式来替代DDN传输方式。
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| 关 键 词： | DDN 卫星 信号 传输对比 数字地震台 |
| 文章编号： | 1001-8662(2004)02-0069-06 |
| 修稿时间： | 2003年12月25 |
Contrast for the signals transferred through DDN and satellite at Zhanjang Digital Seismographic Station |
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| LIN Wei,WU Shu-kun,WU Yong-quan.Contrast for the signals transferred through DDN and satellite at Zhanjang Digital Seismographic Station[J].South China Journal of Seismology,2004,24(2):69-74. |
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| Authors: | LIN Wei WU Shu-kun WU Yong-quan |
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| Abstract: | The satellite ground station was installed in 2002 to resolve serious lost data, interrupt record, high error code and malfunction rate that always have exist since Zhanjiang Digital Seismic Station ran in January 2000. The signals transferred through DDN and satellite were contrast on June 15,2003. After 139 days, the result indicated the DDN signal is still very poor and signal continuum rate only is 96.50 percent, but no any error code and only a few interrupts appear in the satellite signal and its continuum rate is 99.65 percent. So, the satellite transfer mode can instead DDN completely. |
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| Keywords: | DDN satellite signal transmiting contrast |
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