基于测线分类的无线坑透初始场强求取探讨  

Discussion of Solving Initial Field Intensity of Radio Tunnel Perspective Based on Classified Probing Lines

作　　者：郭方[1] 李培根 齐顺 张宁[3] 

机构地区：[1]福建工程学院信息科学与工程学院,福建福州350108 [2]福州华虹智能科技开发有限公司,福建福州350001 [3]福建工程学院机械与汽车工程学院,福建福州350108

出　　处：《煤炭科学技术》2013年第12期97-99,104,共4页Coal Science and Technology

基　　金：福建省自然科学基金资助项目(2013J01168);福建省教育厅资助项目(JB13142);福建工程学院科研发展基金资助项目(GY-Z11075);福建工程学院科研启动基金资助项目(GY-Z12078)

摘　　要：针对井下坑透探测过程中噪声对同一扇区内不同射线接收场强对初始场强求取结果影响大的问题,提出一种利用整个工作面接收的所有场强来求取初始场强的新思路,探索了测线长度分类对优化初始场强求取过程中的作用。首先将相同长度测线对应的接收场强分类,然后求出分类后每条测线对应的近似接收背景场强,并代入电磁波衰减公式组成方程组,最后利用最小二乘法求解出相应的初始场强和背景强度。理论仿真结果表明:此方法能很好地利用整个工作面所接收的场强,结果误差约5%,基本满足生产需要,对现场初始场强的求取具有一定指导作用。According to the issue that noise had an important influence on the solution of initial field intensity with the receiving field inten- sity of different probing lines within a sector in the process of radio electromagnetic wave tunnel perspective, a new thought was put forward to solve initial field intensity by all receiving field intensity in the whole working face, and the method that initial field intensity was solved with classified probing lines was explored.Firstly,the receiving field intensity of the same probing lines was classified.Then the approximate background receiving field intensity of every probing line was obtained by classified receiving field intensity.After the equations of the at- tenuation formula of electromagnetic were established, the initial field intensity and background absorption coefficient were obtained by least square method.Theoretical analysis showed that the method could make full use of all of the receiving field intensity in the whole working face.The error of solved result with this method was about 5%, and it could meet the requirements of mineral exploration, served as a guideline on the solution of initial field intensity.

关 键 词：坑透 初始场强 测线分类 背景场强 最小二乘法 

分 类 号：TH741[机械工程—光学工程]