synthetic aperture radar



  • An airborne radar that emits microwave energy along a given path, and which utilizes the Doppler effect to process the phase of the returned radar signals. Such a radar effectively synthesizes the equivalent of a very long aperture, and is used, for instance, for ground mapping. Its abbreviation is SAR.
  • acronymSAR


  • noun a register within the CPU that contains the address of the next location to be accessed.