Intrinsic Scalar Magnetic Gradiometer for Accurate Localization of Magnetic Anomalies
Abstract
Underwater detection and remediation of Unexploded Ordnance (UXO) remains challenging problem for many reasons including the dynamical nature of the environment, limited visibility, mobility of Targets of Interest (ToIs), and the absence of GPS positioning. Even after ToIs have been identified through Wide Area Assessment techniques, the targets have to be accurately reacquired for precise positioning the instrumentation to classify the ToI. The objective of this project is to investigate the feasibility of a magnetic-gradient-based detailed survey technique for real-time ToI localization and potentially for UXO classification enhancement. The localization method requires the development of ultra-sensitive short baseline scalar magnetic gradiometer with the combined sensitivity and baseline requirements far beyond the capability of any gradiometer composed of individual magnetometers. A proof-of-concept gradiometer is constructed to explore the possibility of meeting the sensitivity and base-line requirements and accuracy of the localization method is studied theoretically based on sensor performance.
Document Details
- Document Type
- Technical Report
- Publication Date
- Feb 24, 2020
- Accession Number
- AD1169173
Entities
People
- Rui Zhang