Static and Moving Target Imaging Using Harmonic Radar
AbstractNonlinear radar exploits the difference in frequency between radar waves that illuminate and are reflected from electromagnetically nonlinear targets. Harmonic radar is a special type of nonlinear radar that transmits one or multiple frequencies and listens for frequencies at or near their harmonics. Nonlinear radar differs from traditional linear radar by offering high clutter rejection and is particularly suited to the detection of devices containing metals and semiconductors. Examples include tags for tracking insects, tags worn by humans for avoiding collisions with vehicles, or for monitoring vital signs. Such tags contain a radio-frequency (RF) nonlinearity, often a Schottky diode, connected to a suitable antenna. Targets with inherent nonlinearities, such as metal contacts, semiconductors, transmission lines, antennas, filters, and ferroelectrics, also respond to nonlinear radar. In this paper, the successful exploitation of harmonic radar for moving target imaging and synthetic aperture imaging of targets, while suppressing clutter signals from linear targets, are presented. Our results demonstrate some unique advantages of harmonic radar over its traditional linear counterpart. View Full-Text
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Gallagher, K.A.; Narayanan, R.M.; Mazzaro, G.J.; Martone, A.F.; Sherbondy, K.D. Static and Moving Target Imaging Using Harmonic Radar. Electronics 2017, 6, 30.
Gallagher KA, Narayanan RM, Mazzaro GJ, Martone AF, Sherbondy KD. Static and Moving Target Imaging Using Harmonic Radar. Electronics. 2017; 6(2):30.Chicago/Turabian Style
Gallagher, Kyle A.; Narayanan, Ram M.; Mazzaro, Gregory J.; Martone, Anthony F.; Sherbondy, Kelly D. 2017. "Static and Moving Target Imaging Using Harmonic Radar." Electronics 6, no. 2: 30.
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