GPU parallel-based fast density inversion method of gravity gradient tensor data
A gravity gradient and density inversion technology, applied in the field of earth science, can solve the problem of increasing time-consuming iterative inversion, and achieve the effect of short calculation time and fast convergence
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[0033] The combined noise model is used to test the inversion effect and acceleration effect of the method, the model distribution and simulated observation data such as figure 2 and image 3 shown.
[0034] The following table compares the running time of parallel algorithms and traditional algorithms
[0035]
[0036] Actual data are used to prove the applicability of this method. The data are the measured data of the Vinton Salt Dome in Louisiana, USA. The measured data and inversion results are as follows: Figure 4 and Figure 5 as shown,
[0037] The combined model test results show that the gravity tensor gradient data inversion has a higher resolution than the single gravity data inversion, and the proposed fast preprocessing method is more close to the set model than the traditional conjugate gradient method, and the density value and geometric position. The efficiency of the parallel program is evaluated by the number of iterations and the total calculation t...
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