基于小波多分辨技术重力场相关系数成像

Correlation Coefficients Imaging of Gravity Field Parameters Based on Wavelet Multi resolution Technology

摘要:

利用基于小波多分辨技术的重力场参数相关系数成像方法对常规重力勘探资料进行处理，求取空间各点的相关系数,表征了各点在地面产生异常的大小.将重力数据的解释从平面空间延伸到地下三维空间，用空间各点的重力场参数的相关系数值来表征地下异常的分布情况，通过对模型剖面数据处理结果的对比分析，基于小波多分辨分解的相关系数成像比未经分解的相关系数成像具有更高的横向和纵向分辨率.最后，给出了模型三维相关系数成像结果,与模型参数有非常良好的一致性.基于该方法的成像结果能更加直观和清晰地反映异常体的空间分布和延伸情况.

Abstract:

We reprocess conventional gravity data with the method of correlation coefficient imaging of gravity parameters based on wavelet multi resolution technology. Solving correlation coefficients of different points of space characterizes the possibility of anomaly on ground generated by different points , so we can do the interpretation of gravity data from a plane space to a three dimensional space. Characterizing the abnormal distribution by gravity parameters correlation coefficient of different points, and making the contrastive analysis of processing results of the model profile data, we have found that correlation coefficient imaging based on wavelet multi resolution decomposition has higher horizontal and vertical resolution compared with correlation coefficient imaging without decomposition,. Finally, the paper puts forward the model 3d correlation coefficient imaging results, which agree well with model parameters. Imaging results based on this method can reflect more directly and clearly the space distribution and extension of the abnormal body.