CAJ | 학술논문

由于煤矿井下环境的特殊性，无线信号易受折射、散射、反射等因素的影响，造成了传统的定位技术得不到有效的发挥。通过分析煤矿井下巷道的无线信号传输模型，结合井下巷道自身的特点，提出了一种改进的信号强度指纹井下目标定位算法，利用均值滤波方法去除受多径效应或遮挡产生的野值点。实验结果表明，该算法能够很好地解决其他指纹定位方法在个别点上定位误差较大的问题，提高了总体的定位精度，获得了煤矿井下目标的理想定位结果。
유우매광정하배경적특수성，무선신호역수절사、산사、반사등인소적영향，조성료전통적정위기술득불도유효적발휘。통과분석매광정하항도적무선신호전수모형，결합정하항도자신적특점，제출료일충개진적신호강도지문정하목표정위산법，이용균치려파방법거제수다경효응혹차당산생적야치점。실험결과표명，해산법능구흔호지해결기타지문정위방법재개별점상정위오차교대적문제，제고료총체적정위정도，획득료매광정하목표적이상정위결과。
The environment in a coal mine is of specificity,where the factors of refraction,reflection tend to interfere with the transmission of wireless signals.Traditional localization algorithms fail to work effectively in the coal mine.The wireless signal transmission model in coal mine is explored.A novel target-location algorithm of fingerprinting technique is proposed for coal mine underground.The outliers that are caused by multipath effect or shadowing are removed by average filter.The experiment results show that proposed algorithm is effective in making up the deficiency of RSS finger-location algorithm in positioning some reference points and improved location accuracy.