无线电波在矿井巷道中传播的探讨
Probes in Propagation of Radio Wave in Mine Roadways
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摘要: 介绍了无线电波在巷道中的应用情况及实验结果。结合理论分析,指出无线电波在井巷中引起电波衰减的主要原因是波的折射与反射,而不是巷壁的吸收。提出井下实验应不仅把注意力放在长波、中波频段,还应放在超短波频段,认为在超短波频段孕育着希望。最后,提出了改进无线电波在井巷中使用效果的几点建议。Abstract: Application and experiment result of radio wave in roadways is introduced. In combination with the result, the author points out that radio wave attenuations in roadway is mainly by wave refraction and reflection rather than wall absorption. Desides long wave and medium wave frequency bands, ultra-short wave frequency band must be taken more attention. Finally the author gives some suggestions in improving radio propagation in roadways.