Location of engines on an aircraft body is crucial for preliminary, quick discrimination of the aircraft type. Fans in jet engines are known to generate a modulation on the reflected radar wave, generating a large Doppler spread. Such spread results in multiple, iso-range detections of significant backscatter at the range location of each engine, whose frequency displacements reflect in quasi-periodic structures on an iso-range line. This paper reports on a method we have developed for detecting such lines based on their specific characteristics in order to determine the range location of aircraft engines.
JEM-line tracking in ISAR airborne radar data of flying aircrafts for engine detecion
RICARDI, NICCOLO';DELL'ACQUA, FABIO;APRILE, ANGELO
2015-01-01
Abstract
Location of engines on an aircraft body is crucial for preliminary, quick discrimination of the aircraft type. Fans in jet engines are known to generate a modulation on the reflected radar wave, generating a large Doppler spread. Such spread results in multiple, iso-range detections of significant backscatter at the range location of each engine, whose frequency displacements reflect in quasi-periodic structures on an iso-range line. This paper reports on a method we have developed for detecting such lines based on their specific characteristics in order to determine the range location of aircraft engines.File in questo prodotto:
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