Enhancement of Magnetic Data by Stable Downward Continuation for UXO Application
Abstract
This project addresses the need for signal processing procedures as outlined in the Statement of Needs MM SEED-08-01, and seeks to develop a new technology for enhancing magnetic data by increasing data resolution and by estimating data noise for use in subsequent analyses. This is the final report for SERDP SEED Project MM-1642; it covers the research results and developments for enhancement of magnetic data by stable downward continuation for UXO applications. The magnetic method is one of the two most effective geophysical techniques currently in use for UXO detection and discrimination. These data are always acquired with sensors at some height above ground surface; that height significantly affects magnetic anomaly shape, amplitude, and spatial extent. Consequently, anomalies due to multiple metallic targets may overlap at a given height above the ground surface, and the acquisition noise may significantly decrease the signal-to-noise ratio (SNR) of data. These adverse effects ultimately mask the true level of contamination at a site during initial wide area assessment (WAA), as well decrease overall effectiveness of discrimination during the active clearance stage. The overall objective of the current project has therefore been to develop a robust algorithm for stable downward continuation (SDC) of magnetic data acquired at some height above the ground to reconstruct the magnetic data with a higher resolution at the ground surface.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 2010
- Accession Number
- ADA571506
Entities
People
- Richard Krahenbuhl
- Sarah Devriese
- Yaoguo Li
Organizations
- Colorado School of Mines