Airborne MIMO GMTI Radar

Abstract

The performance of a ground moving target indicator (GMTI) radar is strongly driven by the length of the radar aperture, as longer apertures enable lower minimum detectable velocity (MDV) and better target geolocation. Multiple-input multiple-output (MIMO) techniques can enable the use of long sparse array geometries while avoiding the adverse sidelobe effects typical of such arrays. In 2009, an experiment was conducted at Ft. Devens, Massachusetts, to collect MIMO GMTI data on instrumented ground targets. A reconfigurable S-band antenna array was programmed to transmit both conventional single-input multiple-output (SIMO) and MIMO waveforms. Analysis of the data indicates improved detection performance with the MIMO techniques compared to the conventional SIMO approach as well as improved geolocation capability.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 2011
Accession Number
ADA540557

Entities

People

  • J. M. Kantor
  • S. K. Davis

Organizations

  • Massachusetts Institute of Technology

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Antennas
  • Arrays
  • Corner Reflectors
  • Detection
  • Experimental Data
  • Geometry
  • Ground Moving Target Indicators
  • Mimo Radar
  • Moving Target Indicator Radar
  • Moving Targets
  • Multiple Access
  • Multiple Input Multiple Output
  • Radar
  • Radial Velocity
  • Signal Processing
  • Time Division Multiple Access
  • Transmitters

Fields of Study

  • Engineering

Readers

  • Phased Array Antenna Design.
  • Radio communications and signal processing.
  • Sensor Fusion and Tracking Systems.