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Study on the resisting multipath decline technique and its application in mine CDMA mobile communication system

机译:抵抗多路径衰落技术及其在矿山CDMA移动通信系统中的应用研究

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The multipath decline is severe in limited space (such as in tunnel, in laneway and in building), so the quality of mobile communication in it drops sharply. The abilities of spread spectrum communication technique and diversity reception technique to resist multipath decline are studied firstly, and then the techniques are used synthetically in mine Code Division Multiple Access (CDMA) mobile communication system. Finally, a mine CDMA mobile communication system forward link-simulating model is built, a bit error curve of the model is got and the simulating result demonstrates that the performance of the system to resist multipath decline is improved awfully.
机译:多径下降在有限的空间中严重(如隧道,巷道和建筑物中的隧道),因此它在它的移动通信质量急剧下降。首先研究了扩频通信技术和分集接收技术以抵抗多径下降的能力,然后在矿码分区多址(CDMA)移动通信系统中合成使用该技术。最后,构建了矿矿CDMA移动通信系统前进的链路模拟模型,获得了模型的比特误差曲线,模拟结果表明,系统抵抗多路径下降的性能得到了改善。

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