State Initialization using Doppler-Shift of Radio Frequency Signals

Abstract

This work investigates a number of techniques for estimating the position and velocity of an unknown radio frequency (RF) transmitter. A number of RF observables are considered, including direction of arrival, time difference of arrival, and Doppler shift. Mathematical models are developed for each of these observable types. A root locus technique is developed for localization of a transmitter fixed to the surface of Earth (the so-called geolocation problem). Preliminary analysis and techniques are presented for the localization of an unknown orbiting transmitter.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 2021
Accession Number
AD1145789

Entities

People

  • Christopher Ertl
  • John A Christian

Organizations

  • Rensselaer Polytechnic Institute

Tags

Communities of Interest

  • Sensors
  • Space

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Algorithms
  • Artificial Satellites
  • Carrier Frequencies
  • Computational Science
  • Doppler Effect
  • Earth Orbits
  • Elevation
  • Frequency Shift
  • Geometry
  • Global Positioning Systems
  • Information Science
  • Ionosphere
  • Kalman Filters
  • Navigation
  • Radio Frequency
  • Vehicles

Readers

  • Radar Systems Engineering.
  • Sensor Fusion and Tracking Systems.
  • Space Exploration and Orbital Mechanics.

Technology Areas

  • Space