Accession Number:

ADA539520

Title:

VLF Magneto-Inductive Signaling and Navigation

Descriptive Note:

Annual rept.

Corporate Author:

FOSTER-MILLER INC WALTHAM MA

Personal Author(s):

Report Date:

1998-01-01

Pagination or Media Count:

6.0

Abstract:

The long-term goal is to establish the feasibility of using Very Low Frequency VLF Magnetic Induction MI as a practical technology for providing navigation information to divers or Autonomous Underwater Vehicles AUVs performing any of a variety of tasks in choppy salt water where RF and sonar methods are difficult to apply. In this program, we make use of magnetic fields as the source of navigation information. The earths magnetic field has been used for millennia as a navigation aid. The field exists almost everywhere, it penetrates salt water and most rock formations and it has a specific direction that is useful for keeping objects oriented anywhere they are deployed. The specific objective of this program is the development of an MI-based navigation system for use by divers, swimmers or by small AUVs in a wide range of countermine and reconnaissance missions, conducted primarily in the surf zone or very shallow water. The approach will be platform independent, immune to surf noise and geographic variations, be clandestine in operation and provide an operating radius of at least a kilometer.

Subject Categories:

  • Submarine Engineering
  • Electricity and Magnetism

Distribution Statement:

APPROVED FOR PUBLIC RELEASE