Research of Characteristics of Transfer Function of Mine-used Twisted Pairs
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摘要: 传输函数是双绞线环路的一项重要指标。文章设定2种矿用双绞线ADSL测试环路,运用传输线路理论,对矿用双绞线ADSL环路的传输函数进行了研究。结果表明,传输函数受传输频率、双绞线线径、环路长度等因素的影响,混合环路的传输函数与环路总长度和分段长度有关,与分段上双绞线型号的次序无关。Abstract: The transfer function is an important parameter of twisted pairs loop.The paper set two kinds of ADSL test loops with mine-used twisted pairs and studied their transfer functions using transmission line theory.The result showed that the transfer function is influenced by frequency,twisted pair diameter and loop distance.The transfer function of the mixed loop relates to distance of whole loop and subsection,and is independent on order of twisted pair types on subsection loops.
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Key words:
- mine /
- video monitoring and control system /
- mine-used twisted pairs /
- ADSL /
- transfer functio
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