JEM-line tracking in ISAR airborne radar data of flying aircrafts for engine detecion

Ricardi, Niccolo; Dell’Acqua, Fabio; Aprile, Angelo

doi:10.1109/igarss.2015.7326492

Cited by 2 publications

(1 citation statement)

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“…In [8], range-Doppler signatures with short dwell times were used to detect jet engines along the target. In [9], an algorithm to detect the range position of jet engines in ISAR images was introduced that utilizes the occurring JEM lines. A drawback of both given examples is that only the range position of the jet engines can be determined with these methods.…”

Section: Introductionmentioning

confidence: 99%

Recognition of jet engines via sparse decomposition of ISAR images using a waveguide scattering model

Wagner

Ender

2017

Int. J. Microw. Wireless Technol.

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Air target recognition is a critical step in the radar processing chain and reliable features are necessary to make a decision. The number and position of jet engines are useful features to perform a pre-classification and give a list of possible targets. To extract these features, a sparse decomposition framework for inverse synthetic aperture radar (ISAR) images is presented. With this framework different components of the target can be detected, if signal models for these parts are available. To use it for the detection of jet engines, a review of a signal model for air intakes, which was developed by Borden, is given. This model is based on the common assumption that the propagation of electromagnetic waves inside jet engines has the same dispersive behavior as inside waveguides. With this model a decomposition of a real ISAR image, measured with the tracking and imaging radar system of Fraunhofer FHR, into point-like scattering centers and jet engines is presented.

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Section: Introductionmentioning

confidence: 99%