Gravity Data, Advanced Processing
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- Spectral analysis
Estimation and analysis of global frequency content of a signal, assumed stationary, most often using the Fast Fourier Transform (FFT).
- Potential field transformations
Process of converting gravity (or magnetic) survey data into a new and physically meaningful form to facilitate its geological interpretation.
- Euler and Werner deconvolution
Methods for automatically estimating depths to sources from gravity (or magnetic) survey data.
- Wavelet analysis
Estimation and analysis of local frequency content of a non-stationary signal, using a wavelet transform (WT).
The use of spectral analysis to interpret gravity anomalies goes back to the 1930s, but the modern approach in terms of the Fourier transform (FT) was developed in the 1960s and 1970s. Most of the methods are equally applicable to magnetic data, which is their more common area of use because of the huge volume of aeromagnetic...
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