摘要
采用三维阵列天线技术,探地雷达虽然能够采集到高密度、无缝拼接的海量数据,但受仪器配套软件的局限,无法发挥其三维数据的优势,实现对地下目标的空间刻画。三维探地雷达与三维地震勘探在传播方式等方面具有相似性。将三维探地雷达数据转换成三维地震数据格式,利用比较成熟的三维地震勘探数据处理系统,可实现三维探地雷达数据的真三维处理。兰州某地的试验性研究表明:统一网格化后三维探地雷达数据,经过静校正、滤波、反褶积、噪音衰减、三维偏移等拟三维地震数据处理,可有效提高三维探地雷达数据的纵、横向分辨率,进而提高三维探地雷达数据的探测精度。
To use the 3D array antenna in GPR although can acquire mass data with high density and seamless splicing,but because of limitation in instrument matched software unable to play its 3D data advantages,realize underground target spatial description. In aspects of propagation mode etc.,the 3D GPR and 3D seismic prospecting are similar. If transform 3D GPR data into 3D seismic data format,then through relatively mature 3D seismic data processing system can realize 3D GPR data true 3D processing. The pilot study of a Lanzhou project has shown that: after unified gridding,3D GPR data through quasi-seismic data processing of calibration,filtering,deconvolution,noise attenuation and 3D migration,can effectively improve 3D GPR data vertical and horizontal resolutions,and then to improve 3D GPR detection accuracy.
出处
《中国煤炭地质》
2017年第10期70-75,共6页
Coal Geology of China
