VLF Method Prospecting Receiver Based on Software Radio
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摘要：
对隐伏矿体的定位预测,已成为当今社会找矿实践与勘察分析的当务之急.基于软件无线电的甚低频法探矿接收机的研制设计,为我国探矿事业的顺利发展提供了良好的催化剂.此接收机可以接收3个台、每个台3个不同的频率共9路甚低频(VLF)信号.这些信号导入地下后是一些强大的电磁波信号,经过抗混叠滤波器,A/D转换器等,最后有信号分析仪分析计算出感应电磁场的垂直分量和水平分量并判断出零交点的准确位置,最后做出相应的仿真,验证了该方法的可行性.
It is a top priority for the current society to find ore prospecting practice and investigation to predict the loca- tion of concealed ore body. The design of the low frequency method based on the software radio is a good catalyst for the devel- opment of China＇s exploration. This receiver can receive signals from three units. Each unit is contained of three different fre- quency of a total of 9 channels of very low frequency （VLF） signals. These signals are imported into the ground after a number of powerful electromagnetic wave signal, after the anti aliasing filter, A/D converter, etc. Finally, the vertical component and the horizontal component of the induced electromagnetic field are calculated by the signal analyzer. And to determine the exact location of zero crossing point. Finally, the simulation is made to verify the feasibility of the method.
作者：
牛有田 毕永兴
机构地区：
betway官方app 物理与电子工程学院 betway官方app 河南省电磁波特征信息探测重点学科开放重点实验室
出处：
《betway官方app 学报：自然科学版》 CAS 北大核心 2016年第1期70-73,共4页
基金：
国家自然科学基金(49070217 61302187)
关键词：
隐伏矿体 甚低频 感应电磁场 零交点 软件无线电
concealed orebody VLF induction electromagnetic field zero crossing software radio
分类号：
TN98 [电子电信—信息与通信工程]
