Two-step integral inverse method for determining geoidal surface based on band-limited aerial vector gravity

• Main Authors: CHEN XIN, OUYANG YONGZHONG, LU XIUPING, HUANG XIANYUAN, FAN LONG, WANG GENGFENG, DENG KAILIANG, WU TAIQI, HUANG CHENHU, LI KAIFENG
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: DETECTING MASSES OR OBJECTS; GEOPHYSICS; GRAVITATIONAL MEASUREMENTS; MEASURING; PHYSICS; TESTING

The present invention relates to a two-step integral inverse method for determining a geoidal surface based on band-limited aerial vector gravity. The method includes the following steps that: based on a generalized horizontal boundary value theory, band-limited aerial vector gravity at the altitude of a flight line is adopted to calculate band-limited aeronautical disturbing potential; and an inverse Poisson integral model is adopted to extend downwards the band-limited aeronautical disturbing potential to a sea surface, so that band-limited sea surface disturbing potential can be obtained, and the band-limited sea surface disturbing potential is converted into the geoidal surface through using the Bruns formula. The method of the invention is reasonable in design. With the method adopted, a new solution is provided for calculating the geoidal surface based on the band-limited aerial vector gravity, a calculation function for determining the geoidal surface by using the band-limited aerial vector gravity is