Passive Radiolocation Of IEEE 802.11 Emitters Using Directional Antennae

Abstract

Low-cost commodity hardware and cheaper consumer drones make the threat of home-made, inexpensive DWAPs greater than ever. Despite the vast leaps in technology these capabilities represent, UAVs are noisy and consequently difficult to conceal as they approach a potential target. This research seeks to investigate using directional antennae on DWAPs by resolving issues inhibiting directional antennae use on consumer and hobbyist drone platforms. This research presents the hypothesis that a DWAP equipped with a directional antenna can predict bearings and locations of WAPs within an acceptable margin of error. A hardware prototype is constructed and a software framework (localizer) is built to capture data to determine optimal parameters and measure bearing and location prediction accuracy. Bearing prediction is accurate to within 14 degrees. For location, a least-squares optimization of multiple rays is used to predict the location of WAPs and is accurate within 60m; an in-depth analysis of these results is presented.

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Document Details

Document Type
Technical Report
Publication Date
Mar 23, 2018
Accession Number
AD1056160

Entities

People

  • Bradford E. Law

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Cyber
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Air Force
  • Aircrafts
  • Angle Of Arrival
  • Computer Network Security
  • Computer Networks
  • Computer Programming
  • Computer Programs
  • Computers
  • Global Positioning Systems
  • Governments
  • Information Operations
  • Local Area Networks
  • Network Protocols
  • Operating Systems
  • Radiation Patterns
  • United States Government
  • Unmanned Aerial Vehicles

Readers

  • Industrial Economics
  • Phased Array Antenna Design.
  • Sensor Fusion and Tracking Systems.

Technology Areas

  • Autonomy