多干扰源下煤矿井下移动目标精确定位仿真

Precise Positioning Simulation of Coal Mine Moving Target under Multi-Interference Source

由于煤矿井下岩层结构复杂、环境恶劣,信号传输中会经过各种设备,并对信号产生多种干扰,导致移动目标不能精准定位,容易出现误报警或者断电等现象。针对上述问题,通过分析多干扰源和移动目标之间的联系,完成煤矿井下移动目标精确定位。对多干扰源进行分类分析,了解煤矿井下各设备产生干扰的原因,使用网格区域划分方法,设计多干扰源下矿井移动目标精确定位计算流程,采用波频参数方法将发射与接收到的信号做频率差计算,利用矩阵与矢量方法得出多干扰源与移动目标之间关系,获得移动目标精确定位。实验结果表明,由于计算过程被简化,可以节省大量时间,并且验证移动目标定位结果精准度较高,最终实现了快速、精确地获取移动目标定位。

Due to the complex structure of the underground rock formation and the harsh environment, the signal transmission will pass through a variety of equipment, and cause various interferences to the signals, resulting in the inability to accurately locate the moving targets, prone to false alarms or power failure and other phenomena. By analyzing the relationship between multiple sources and moving targets, we completed the precise positioning of moving targets in underground coal mine. We classified and analyzed multi-interference sources at first. After that, we discussed the reason of interference in the underground equipment. Secondly, we used the grid division method to design the precise positioning calculation process of mine moving targets under multi-interference sources. Thirdly, we used the wave-frequency parameter method to calculate the frequency difference between transmitting signal and receiving signal. Finally, we used the matrix and vector to get the relationship between the multi-interference source and the moving target. Thus, the precise positioning for moving target was achieved. Following conclusions can be drawn from experimental results: because the calculation process is simplified, a lot of time can be saved, meanwhile, the accuracy of mobile target positioning result is high, therefore, the moving target positioning is obtained quickly and accurately.