A Comparison of Effects Between the Iteration Method and FFT for Downward Continuation of Potential Fields

2007 ◽  
Vol 50 (1) ◽  
pp. 270-274 ◽  
Author(s):  
Shi-Zhe XU
Keyword(s):  
Iteration Method ◽  
Downward Continuation ◽  
Potential Fields

Analysis on Convergence of Iteration Method for Potential Fields Downward Continuation and Research on Robust Downward Continuation Method

2009 ◽  
Vol 52 (2) ◽  
pp. 511-518 ◽  
Author(s):  
Hui ZHANG ◽  
Long-Wei CHEN ◽  
Zhi-Xin REN ◽  
Mei-Ping WU ◽  
Shi-Tu LUO ◽  
...  
Keyword(s):  
Iteration Method ◽  
Continuation Method ◽  
Downward Continuation ◽  
Potential Fields

A Regularization Method for Downward Continuation of Potential Fields

2011 ◽  
Vol 135-136 ◽  
pp. 132-139
Author(s):  
Tao Ma ◽  
Mei Ping Wu ◽  
Xiao Ping Hu ◽  
Guan Nan Li
Keyword(s):  
Regularization Method ◽  
Regularization Parameter ◽  
Downward Continuation ◽  
Potential Fields ◽  
Model Data ◽  
Regularization Theory ◽  
Inherent Limitation ◽  
Noise Data ◽  
Curve Method ◽  
Selection Of

Instability is the inherent limitation of downward continuation. Based on integral iteration idea and regularization theory, a regularization method is proposed for downward continuation of potential fields. We also present an L-curve method for the selection of regularization parameter. The improved method is tested on model data both with and without noise. The results show that the new method is much more stable than the iteration method, especially in dealing with low signal-to-noise data, and that it also has a large downward continuation distance.

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