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近年来在通讯系统中,为了最大限度改善传输质量、提高传输效率,提出了最佳传输的理论。分析目前煤矿井下架线载波通讯的状况,也存在同样问题。我矿自82年开始研制和使用集成电路载波电话以来,发现载波机在不同地点进行发送,其传输效果相差较大。通过测量架线的对地阻抗,初步分析由于井下架线对地阻抗分布不均匀,当载波机以恒定功率发射时,
In recent years in the communication system, in order to maximize the transmission quality and improve the transmission efficiency, the theory of optimal transmission is proposed. Analysis of the current state of the underground mine line carrier communications, there are also the same problem. Since the beginning of development and use of integrated circuit carrier phones in our mine in 1982, it has been found that carriers transmit in different locations with different transmission effects. By measuring the impedance of the line to ground, a preliminary analysis of the distribution of underground ground impedance due to uneven distribution, when the carrier at a constant power emission,