Thejet engine modulation (JEM) phenomenon, observed in radar return,; from the rotating structure of Jet engines, has been successfully exploited for aircraft target ideutification in a number of experimental radar systems. We develop a parametric model based on the periodic modulation of the scattered return, motivated by the potential reduction in tlme-on-target for reliable target Identification provided by parametric models, as well as galnlng insight into the JEM phenomenolL We tbeu cOIqlare the model with JEM measurements made with an experimental radar systeOL F1nally, we discuss the lIqllications for JEM-based target identification systems.
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