Recent non-linear radar research at the Army Research Laboratory

Kyle A. Gallagher, Gregory J. Mazzaro, Anthony F. Martone, Kelly D. Sherbondy, Ram Mohan Narayanan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

8 Scopus citations


Nonlinear radar has proven to be a viable means of detecting devices that contain electrical nonlinearities. Electrical nonlinearities are present in dissimilar metals, metal to oxide junctions, semiconductors and more. This paper presents a linear and nonlinear synthetic aperture radar (SAR) system capable of imaging linear and nonlinear targets. The system creates images using data collected from a fixed 16 channel receiver with a single transmitter. A custom 16:1 switching network was developed to collect the SAR data from a 16 antenna receive array. SAR images presented show a nonlinear target placed directly on the ground and imaged in multiple range and cross-range locations. Data is also presented showing the clutter rejection properties of nonlinear radar. Images show that the harmonic radar is able to ignore the strong linear response from a corner reflector, while retaining the nonlinear response from a target.

Original languageEnglish (US)
Title of host publicationRadar Sensor Technology XXI
EditorsArmin Doerry, Kenneth I. Ranney
ISBN (Electronic)9781510608771
StatePublished - 2017
EventRadar Sensor Technology XXI 2017 - Anaheim, United States
Duration: Apr 10 2017Apr 12 2017

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


OtherRadar Sensor Technology XXI 2017
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Computer Science Applications
  • Applied Mathematics
  • Electrical and Electronic Engineering


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