矿井UWB信号功率谱分析及传输性能  

Pulse power spectrum analysis and communication performance based on UWB in coal mine well

作　　者：郝维来[1] 孙剑[1] 刘维超[1] 

机构地区：[1]黑龙江科技学院计算机与信息工程学院,哈尔滨150027

出　　处：《黑龙江科技学院学报》2009年第1期38-41,共4页Journal of Heilongjiang Institute of Science and Technology

基　　金：黑龙江省自然科学基金资助项目(CF2005-05);黑龙江省青年学术骨干教师资助项目(1053G034)

摘　　要：为解决UWB信号对现有无线通信的干扰问题,深入分析了高斯脉冲的时域和频域特性,通过对高斯脉冲高阶求导的方法,增加时域波形过零次数,使之中心频率右移,满足FCC对UWB功率限制的规定。针对煤矿井下无线通信环境的特殊性,建立了信号发射功率、调制方法、传输速率与通信距离之间的关系,并仿真证明。The attempt to resolve ultra wide band signal＇ s interference in existing wireless communication results in deep investigation into time-domain and frequency-domain characteristics of gauss pulse. Cross zero times of time-domain waveform is increased by finding high order derivative of gauss pulse to make its center frequency move to right side so as to meet the limits policy of FCC to ultra wide band＇ s power. The particularity of wireless communication circumstances in coal mine involves setting up the relationship between the signal transmission power, modulation method, transmission rate and communication distance, as proved by simulation.

关 键 词：UWB 高斯脉冲 无线通信 

分 类 号：TN911[电子电信—通信与信息系统]