Analytical Formulas for Underwater and Aerial Object Localization by Gravitational Field and Gravitational Gradient Tensor

作者：Tang, Jingtian; Hu, Shuanggui; Ren, Zhengyong^*; Chen, Chaojian; Xiao, Xiao; Zhou, Cong

来源：IEEE Geoscience and Remote Sensing Letters, 2017, 14(9): 1557-1560.

DOI：10.1109/LGRS.2017.2722475

• Gravitational field
• gravitational gradient tensor (GGT)
• moving object localization
• singularity of the denominator

Object localization techniques have significant applications in civil fields and safety problems. A novel analytical formula is developed for accurate underwater and aerial object real-time localization by combining gravitational field and horizontal gravitational gradient anomalies. The proposed method enhances the accuracy of object localization and its excess mass estimation; it also effectively avoids the possible numerical instability and the singularity in the previous works. Finally, a synthetic underwater object navigation model was adopted to verify its performance. The results show that our newly developed method is more practical than existing methods.

• 出版日期2017-9
• 单位中南大学