| 基于软件无线电的甚低频法探矿接收机 |
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| 作者单位： | ;1.河南师范大学物理与电子工程学院;2.河南师范大学河南省电磁波特征信息探测重点学科开放重点实验室 |
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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.
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| 关 键 词： | 隐伏矿体 甚低频 感应电磁场 零交点 软件无线电 |
VLF Method Prospecting Receiver Based on Software Radio |
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| Institution: | ,College of Physics and Electronical Engineering,Henan Normal University,Laboratory for Electromagnetic Wave Detection of Henan Province,Henan Normal University |
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| Abstract: | It is a top priority for the current society to find ore prospecting practice and investigation to predict the location of concealed ore body.The design of the low frequency method based on the software radio is a good catalyst for the development of China's exploration.This receiver can receive signals from three units。Each unit is contained of three different frequency of a total of 9channels 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. |
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| Keywords: | concealed orebody VLF induction electromagnetic field zero crossing software radio |
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