Multiple underwater objects localization with magnetic gradiometry

S Hu, J Tang, Z Ren, C Chen, C Zhou… - … and Remote Sensing …, 2018 - ieeexplore.ieee.org
Magnetic object localization techniques have significant applications in automated
surveillance and security systems, such as aviation aircrafts or underwater vehicles. In this …

[HTML][HTML] 基于重力梯度张量曲率的边界识别

汤井田, 史庆斌, 胡双贵, 任政勇, 肖晓, 曲毅, 杨磊… - 地球物理学报, 2019 - html.rhhz.net
重力梯度张量曲率目前广泛用于重力数据的处理和解释中. 为了拓宽重力梯度张量曲率的应用,
本文回顾了重力梯度张量曲率的定义, 从等位面的曲率定义出发, 讨论了正确计算曲率的测量 …

Localization of multiple underwater objects with gravity field and gravity gradient tensor

J Tang, S Hu, Z Ren, C Chen - IEEE Geoscience and Remote …, 2018 - ieeexplore.ieee.org
We present a novel algorithm to locate multiple underwater objects in real time using gravity
field vector and gravity gradient tensor signals. This algorithm formulates the task of …

Edge detection based on curvature of gravity gradient tensors

JT TANG, QB SHI, SG HU, ZY REN, X Xiao… - Chinese Journal of …, 2019 - en.dzkx.org
Recently, the curvature of gravity gradient tensors is widely used in processing and
interpretation of gravity data. In order to extend the application of this parameter, the local …

Identification of the Shaft-rate Electromagnetic Field Induced by a Moving Ship Using Improved Learning-based and Spectral-direction Methods

S Hu, L Zhang, J Tang, G Li, H Yang… - … on Geoscience and …, 2024 - ieeexplore.ieee.org
The use of the shaft-rate electromagnetic fields generated by moving ships for detection and
sensing purposes has several advantages, including effective target recognition and …

Three-dimensional forward modelling of gravity field vector and its gradient tensor using the compact difference schemes

K Pan, Z Zhang, S Hu, Z Ren, R Guo… - Geophysical Journal …, 2021 - academic.oup.com
The traditional gravity forward modelling methods for solving partial differential equations
(PDEs) only can yield second-order accuracy. When computing the gravity field vector and …

[HTML][HTML] 基于偶极子模型的潜航器异常重力场及探测平台需求分析

汪海洪, 罗佳, 褚永海 - 地球物理学报, 2021 - html.rhhz.net
重力探潜是一种具有发展潜力的非声学探潜技术, 目前仍处于理论探索阶段.
本文推导了垂直偶极子模型的引力和引力梯度垂向分量的解析公式, 分析了它们的空间分布特征 …

[HTML][HTML] 基于尺度空间技术的归一化Facet 模型位场边界识别

胡双贵, 汤井田, 任政勇, 周聪, 肖晓 - 地球物理学报, 2019 - html.rhhz.net
边界识别是位场数据处理解释中的重要环节, 传统边界识别方法通常不能均衡深,
浅部地质体边界. 基于尺度空间技术和归一化的Facet 模型检测算子, 本文开发了一种带通空间 …

Improving the Detection Accuracy of Underwater Obstacles Based on a Novel Combined Method of Support Vector Regression and Gravity Gradient

T Fu, W Zheng, Z Li, Y Shen, H Zhu, A Xu - Remote Sensing, 2023 - mdpi.com
Underwater gravity gradient detection techniques are conducive to ensuring the safety of
submersible sailing. In order to improve the accuracy of underwater obstacle detection …

Normalized facet edge detection and enhancement in potential field sources with the scale-space technique

SG HU, JT TANG, ZY REN, C ZHOU… - Chinese Journal of …, 2019 - en.dzkx.org
Edge detection and enhancement is an important technique in interpretation of potential
field data. Many existing edge detection and enhancement methods are usually unable to …