摘要
分析了影响煤矿井下漏泄通信系统的信号传输的主要性能指标,提出了漏泄同轴电缆的选用依据,建立了煤矿井下漏泄电缆的连接方式的数学模型。通过建模分析得出了在井下选用耦合损耗依次减小的漏泄电缆不仅可以延长传输距离,而且能够保证移动台获得稳定的接收电平。
The article has analyzed the main performance which affected the transmission of signal of the underground leakage communications system in coal mine, proposed the basis of the leakage coaxial cable selected , established the mathematical model of leakage coaxial cable in coal mine . It is concluded that the different coupling loss of the leakage coaxial cable has been selected to lengthen the transmitting range, and the coupling loss has been gradually reduced to obtain stable received signal.
出处
《华北科技学院学报》
2007年第3期23-25,共3页
Journal of North China Institute of Science and Technology
关键词
漏泄通信
漏泄同轴电缆
耦合损耗
传输损耗
leakage communications
the Leakage coaxial cable
Coupling loss
Transmission loss
