Commercial Off the Shelf Direct Digital Synthesizers for Digital Array Radar

Abstract

Up until the 1980s, conventional radar systems consisted primarily of analog circuits, which are costly to build and compatible only to a narrow band of operations. Modern digital technology offers increasing capabilities at a lower cost making it attractive for modern radar application. The Direct Digital Synthesizer (DDS) is one such example of digital technology that is now routinely found in newer radar system designs. The DDS characteristics that most attract radar-system designers are precision frequency tuning, phase offset control, and linear chirp capability. This study discusses the option of incorporating DDS for use in a digital pulsed and/or frequency modulated continuous wave (FMCW) radar, and examined the necessary adaptations such as up-converting baseband signals from DDS to a radar transmission frequency, viable transmit and receive waveforms and the synchronization problem relating to synchronizing the many radiating elements that could range from a few to possibly thousands.

Open PDF

Document Details

Document Type
Technical Report
Publication Date
Dec 01, 2005
Accession Number
ADA443438

Entities

People

  • Winston Ong

Organizations

  • Naval Postgraduate School

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms
  • Space
  • Weapons Technologies

DTIC Thesaurus Topics

  • Amplitude Modulation
  • Ballistic Missiles
  • Bandwidth
  • Frequency
  • Frequency Agility
  • Frequency Bands
  • Frequency Shift
  • Measuring Instruments
  • Microwave Frequency
  • Modulators
  • Network Topology
  • Phased Array Radar
  • Radar
  • Radio Frequency
  • Three Dimensional
  • Waveform Generators
  • Waveforms

Readers

  • Computer Science/Computer Engineering/Data Science/Digital Signal Processing.
  • Radar Systems Engineering.
  • Systems Analysis and Design