Method for calculating gravity anomaly high-order radial derivative by using band-limited thought
The invention relates to a method for calculating a gravity anomaly high-order radial derivative by using a band-limited thought, which is mainly technically characterized by comprising the following steps of representing an analytic kernel function of an earth external gravity anomaly Poisson integ...
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Main Authors | , , , , , , , , , , |
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Format | Patent |
Language | Chinese English |
Published |
18.06.2021
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Subjects | |
Online Access | Get full text |
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Summary: | The invention relates to a method for calculating a gravity anomaly high-order radial derivative by using a band-limited thought, which is mainly technically characterized by comprising the following steps of representing an analytic kernel function of an earth external gravity anomaly Poisson integral formula as a spherical harmonic series expansion formula, and obtaining a gravity anomaly high-order radial derivative spherical harmonic series expression by using a derivation method, and truncating the spherical harmonic series expression of the gravity anomaly high-order radial derivative into a band-limited summation formula consistent with the spectral range of the gravity observation value by using a removal-recovery technology, compensating a far-region truncation error of the gravity anomaly high-order radial derivative by using a global gravity potential model, and calculating to obtain the gravity anomaly high-order radial derivative. The method is reasonable in design, the gravity anomaly high-order |
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Bibliography: | Application Number: CN202110180193 |