摘要
利用位场小波建立均质球体和常用二度体重力异常的多尺度边缘模型,并分析这些多尺度边缘的特征,在此基础上提出利用多尺度边缘进行重力异常反演的方法。该方法的优点是毋需任何假设即可同时反演几何参数和密度参数,且具有较高的稳定性和较强的抗噪性能,并以二度直立柱体为例对该方法进行了验证。
Multiscale edge models of gravity anomalies for homogeneous sphere and several 2D regular bodies are derived based on the potential wavelet. The features of these models are analyzed and then a mutliscale edges based on the method is put forward for the gravity anomaly inversion. The outstanding ability of the proposed method is that geometric parameters and density parameters can be inverted without any hypothesis. This method also has high stability and good antinoise performance. Finally, a model of 2D block is used as an example to verify the method.
出处
《大地测量与地球动力学》
CSCD
北大核心
2008年第5期109-114,共6页
Journal of Geodesy and Geodynamics
基金
国家自然科学基金(40704003)
国家重点基础研究发展计划(973计划)项目(2007CB714405)
地球空间环境与大地测量教育部重点实验室开放基金(测绘基础研究)(04-01-08)
关键词
多尺度边缘
重力异常
反演
位场小波
均质球体
muhiscale edges
gravity anomalies
inversion
potential wavelet
homogeneous sphere
