Title :
Underwater Object Detection Based on Gravity Gradient
Author :
Wu, Lin ; Tian, Xin ; Ma, Jie ; Tian, Jinwen
Author_Institution :
Nat. Key Lab. of Sci. & Technol. on Multi-spectral Inf. Process. Technol., Huazhong Univ. of Sci. & Technol., Wuhan, China
fDate :
4/1/2010 12:00:00 AM
Abstract :
A novel method of underwater object detection based on gravity gradient is presented, which can be used on autonomous underwater vehicles (AUVs) to detect abnormal objects underwater. Gravity gradient anomalies of partial area, which are caused by the object, can be measured by a gravity gradiometer on an AUV. Then, anomalies can be inversed with a gravity gradient inversion algorithm, so the mass and barycenter of an object can be estimated. Simulation results show that approximate information of an object can be provided by the proposed method.
Keywords :
gradient methods; object detection; oceanographic techniques; underwater vehicles; AUV; autonomous underwater vehicles; gravity gradient anomalies; gravity gradient based underwater object detection; gravity gradient inversion algorithm; gravity gradiometer measurements; Gravity gradient anomaly; gravity gradient inversion; gravity gradient measurement; underwater object detection;
Journal_Title :
Geoscience and Remote Sensing Letters, IEEE
DOI :
10.1109/LGRS.2009.2035455
