Shipborne gravity measurement method based on PPP technology
A measurement method and technology, applied in the direction of measuring devices, gravitational field measurement, geophysical measurement, etc., can solve the problems of increasing user operating costs and limited working distance, so as to improve operating efficiency, reduce operating costs, and ensure measurement accuracy Effect
Inactive Publication Date: 2014-06-11
THE CHINESE PEOPLES LIBERATION ARMY 92859 TROOPS
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The invention relates to a shipborne gravity measurement method based on the PPP technology. The method is mainly characterized in that a gravity meter and a dual-frequency GPS antenna are installed on the same straight line and used for measuring shipborne gravity, GPS observation data acquired by a measurement wire are subjected to precise single-point positioning resolving, and the accurate 3D position of an observation point is obtained; according to the accurate 3D position of the observation point, Eotvos correction and perpendicular acceleration correction are calculated; according to the gravity observation value measured by the gravity meter, the Eotvos correction and the perpendicular acceleration correction, an image-borne result gravity value is obtained through comparison calculation of base points. According to the method, only one dual-frequency GPS receiver is needed, the 3D position of a shipborne gravity measurement line can be accurately calculated through the PPP technology, and the shipborne gravity measurement can be completed without arrangement of a reference station. With the method, not only is measurement accuracy guaranteed, but also operation cost is reduced, meanwhile, region and distance limitation does not exist in the operation process, and operation efficiency is improved.
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Satellite radio beaconingGravitational wave measurement
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