The influence of installation angle of GGIs on full-tensor gravity gradient measurement

[摘要] Gravity gradient plays an important role in many disciplines as a fundamental signal to reflect the information of the earth. Full-tensor gravity gradient measurement (FGGM) is an effective way to obtain the gravity gradient signal. In this paper, the installation mode of GGIs in FGGM is studied. It is expected that the accuracy of FGGM will be improved by optimizing the installation mode of GGIs. In addition, we analysed the relationship between GGIs' installation angle and FGGM by establishing the measurement model of FGGM. Then the following conclusions was proved that there was no relationship between GGIs' installation angle and the measurement result. This conclusion showed that there was no optimal angle for the GGIs' installation in FGGM, and the installation angle only need to satisfy the relationship shown in the conclusion section of this paper. Finally, this conclusion was demonstrated by computer simulations.

[发布机构] College of Mechatronics and Automation, National University of Defense Technology, Changsha; 410073, China^1

[效力级别] 无线电电子学

[关键词] Gravity gradients;Installation angle;Measurement model;Optimal angle