摘要
针对煤矿井下低压电力线的传输特性,提出了基于CLUSTER-OFDM的信号提取和传输技术,建立了其数学模型,同时建立了基于CLUSTER-OFDM的煤矿井下子群分配机制。通过仿真和实验验证了CLUSTER-OFDM信号提取和传输技术的可行性,实验结果表明该技术对消除OFDM技术峰均功率比过大有一定的改善,提高了用户接收信号的可靠性。
Aiming at the transmission characteristics of coal mine low - voltage power line, this article proposes the signal extraction and transmission technology based on CLUSTER - OFDM. It also establishes its mathematical model, and establishes the eoal mine sub- group distribution mechanism based on CLUSTER - OFDM. According to the simulation and experiment, it proofs the feasibility of the CLUSTER -OFDM signal extraction and transmission technology. The experiment results show that the technique had some improve- ment for the elimination of peak to average power ratio of OFDM technology, which improves the reliability of the received signal of the users.
出处
《煤矿安全》
CAS
北大核心
2014年第6期96-99,共4页
Safety in Coal Mines
基金
山东省自然科学基金资助项目(ZR2010FM041)
关键词
CLUSTER-OFDM技术
井下低压电力线
子群分配机制
通信
监控
CLUSTER - OFDM technology
underground low - voltage power line
distribution mechanism for subgroups
communication
monitor
