Abstract
Based on the measurement of electromagnetic scattering data, the electromagnetic scattering system model of small-size targets, electrically large targets and a missile warhead of flat base are established by using the system identification method. Relations of their electric multipole moments with frequency and target size are obtained. The radiation field of electric multipole moments is almost the same as the scattered field of the corresponding target. This agreement shows the effectiveness of modeling of applying system identification to electromagnetic scattering as well as the validity of the obtained results. Target stealth method with electric multipole moments is proposed and calculations show that this new method may reduce the scattering cross-section of the target to − 30 dB up to − 50 dB. This stealth method has the characteristics of easy realization and a wide frequency band. It has explored a new approach for target stealth design.
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