变换域通信系统在煤矿井下的应用研究

Research of Application of Transform Domain Communication System in Coal Mine Underground

针对煤矿井下复杂的电磁环境以及现有矿用无线通信系统抗干扰能力差的问题,分析了变换域通信系统应用于煤矿井下的可行性,提出了矿井变换域通信系统发射机和接收机的设计方案,并模拟井下电磁环境对矿井变换域通信系统的功率谱、阈值比较后的功率谱、调制波形和误码率进行了仿真分析。分析结果表明,该系统具有较好的抗干扰和抗噪声特性及较低的误码率,可在复杂的电磁场环境中有效地通信。

For complex electromagnetism environment in coal mine underground and poor anti- interference ability of existing mine-used wireless communication systems, the paper analyzed feasibility of application of transform domain communication system in coal mine underground and proposed design schemes of transmitter and receiver of mine transform domain communication system. It also simulated and researched power spectrum, power spectrum after comparing threshold, modulation waveform and bit error rate of the system through simulating underground electromagnetism environment. The analysis result showed that the system has good anti-interference and anti-noisy performance and low bit error rate, and can realize wireless communication effectively in complex electromagnetism environment.