Indoor Navigation Using a Software Defined Radio

Abstract

Time of Arrival (TOA) observations from local beacon signals can be used to augment and provide a back-up navigation source for GPS signals in a Software Defined Radio (SDR). The addition of inertial sensor inputs to the SDR offers the ability to track down to much lower power levels for both the GPS and TOA signals, effectively deal with multipath, and recover more quickly from signal outages. In this paper, multipath mitigation algorithms that leverage combined TOA and inertial measurements are presented to enhance tracking performance in indoor and urban environments.

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Document Details

Document Type
Technical Report
Publication Date
Oct 01, 2008
Accession Number
ADA493117

Entities

People

  • Alison K. Brown
  • Ben Matthews

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Abstracts
  • Acquisition
  • Algorithms
  • Artificial Satellites
  • Detection
  • Environment
  • False Alarms
  • Filters
  • Global Positioning Systems
  • Kalman Filters
  • Measurement
  • Military Applications
  • Military Operations
  • Navigation
  • Observation
  • Software Defined Radio
  • Warning Systems

Fields of Study

  • Computer science
  • Engineering

Readers

  • Positioning, Navigation, and Timing (PNT) Technology.
  • Radio communications and signal processing.

Technology Areas

  • Space
  • Space - Orbital Debris