1) empty and straight mine laneway
矿井空直巷道
1.
After studying the fading situation of mine tunnel,this paper found out the relationship between the bit error rate(BER) of narrowband and wideband signal and transmission distance in the empty and straight mine laneway.
为建立高效的矿井无线通信系统,本文在研究了矿井巷道信道的衰落情况后,建立了矿井空直巷道信道下窄带和宽带信号误码率与传输距离之间的关系,研究了矿井空直巷道对通信频率分别为900 MHz1、800 MHz和2。
2) mine tunnel
矿井巷道
1.
A statistical channel model of wideband UHF radio waves along rectangular-like mine tunnel;
类矩形矿井巷道中UHF宽带电磁波统计信道建模
2.
The mine tunnel and the overall focus on local construction sites of thinking,from the three-dimensional visual clearly show to be shown the roadway and its focus on the site,to simulate the mine fire smoke in the tunnel in the scene to provide liquidity situation.
阐述了矿井巷道三维模型总体和局部重点部位的构建思想,从立体视觉上能清晰的呈现所要显示巷道及其重点部位,为模拟矿井火灾烟流在巷道中流动状况提供场景。
3.
Based on the multi-section Nakagami distribution statistical channel model of mine tunnel for wideband radio wave, the bit error rate (BER) performance of multicarrier direct-sequence code-division-multiple-access (MC-DS-CDMA) modulation in mine tunnel was simulated.
基于所建立的Nakagami分布矿井巷道宽带统计分段信道模型,仿真研究了多载波直接序列扩频码分多址接入(MC-DS-CDMA)调制技术在矿井巷道中的宽带无线通信性能。
3) mine roadway
矿井巷道
1.
Analysis on communication performances of DS-CDMA modulation technology in mine roadway;
DS-CDMA调制技术在矿井巷道中的通信性能分析
4) The throat of a mine
矿井的巷道口
5) Coal mine laneway wireless channel model
矿井巷道无线信道模型
补充资料：贬江陵途中寄乐天、杓直、杓直以员外郎判盐
【诗文】：
想到江陵无一事，酒杯书卷缀新文。紫芽嫩茗和枝采，
朱橘香苞数瓣分。暇日上山狂逐鹿，凌晨过寺饱看云。
算缗草诏终须解，不敢将心远羡君。
【注释】：
【出处】：
全唐诗：卷412-33
想到江陵无一事，酒杯书卷缀新文。紫芽嫩茗和枝采，
朱橘香苞数瓣分。暇日上山狂逐鹿，凌晨过寺饱看云。
算缗草诏终须解，不敢将心远羡君。
【注释】：
【出处】：
全唐诗：卷412-33
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条