摘要
分析了煤矿井下无线通信系统存在的主要问题,介绍了OFDM技术抗干扰原理和特点。通过Matlab中的Simulink仿真可以分析出该技术对提高矿井通信质量,尤其是对克服多径效应及机电噪声引起的抗干扰能力弱、通信质量差等缺点起到重要的作用。并从理论上分析了该技术在矿井通信中的抗多径衰落的可行性。
The paper analyzed the main problems existed in the mine underground wireless communication system and introduced the anti interference principle and features of the OFDM technology. The simulink simulation in the Maflab could bae applied to analyst the technology to improve the mine communication quality, especially to have the important role to overcome the low anti interference capacity, poor communication quality and others occurred by the muhipath effect and electrical and mechanical noises. From the theoretically the paper analyzed the feasibility of the technology to anti muhipath fading in the mine communication.
出处
《煤炭工程》
北大核心
2009年第12期22-24,共3页
Coal Engineering
