Digital Tracking Array for FM Signals Based on Off-The-Shelf Wireless Technologies

Abstract

The purpose of this research is to design a digital phased array for receiving and tracking a 2.4 GHz frequency modulation (FM) video signal from an unmanned air vehicle. The tracking is done using a monopulse technique Various numbers of elements were simulated to access the pattern coverage. The beamforming and demodulation are performed digitally by a computer. Several antenna architectures were studied and the requirements for hardware components such as the analog-to-digital converters and amplifiers are specified. Several methods for generating the carrier signal for the local oscillator are also discussed. They include an independent local oscillator, a voltage controlled oscillator with feedback (i.e., a phased locked loop) and mixing with a phase shifted copy of the received signal (Bilotti's method).

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Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2007
Accession Number
ADA475975

Entities

People

  • Hui K. Edmund

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Air Platforms
  • Autonomy
  • Electronic Warfare
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Aircrafts
  • Amplifiers
  • Bandwidth
  • Converters
  • Demodulation
  • Electrical Engineering
  • Field Programmable Gate Arrays
  • Frequency Bands
  • Global Positioning Systems
  • Local Oscillators
  • Military Applications
  • Modulators
  • Radar
  • Signal Processing
  • Three Dimensional
  • Unmanned Aerial Vehicles
  • Unmanned Systems

Fields of Study

  • Engineering
  • Physics

Readers

  • Electronics Engineering
  • Phased Array Antenna Design.
  • Radio communications and signal processing.

Technology Areas

  • Autonomy