Abstract
In order to analyze the scattering properties in multi-radiator problems, the active radar cross section (ARCS) concept is proposed under complex electromagnetic (EM) environments. The corresponding calculation methods and formulation are proposed by incorporating the monostatic radar cross section (RCS) concept with external disturbances. By introducing the phase characteristics into the ARCS concept, the coherent problems can be accurately solved. Through analyzing the external disturbance and the radar waves by employing the finite element method, the coherent and the incoherent characteristics of the external disturbance can be simulated in complex structures. Numerical examples and an experiment are carried out to further demonstrate the effectiveness of the proposed ARCS concept. The results demonstrate that the proposed ARCS concept obtains better universality compared with the existing incoherent multi-radiator formulation. Meanwhile, the ARCS can be identical with the solution which is obtained by the single radar wave. Compared with the existing incoherent methods for external disturbances calculations, the proposed ARCS concept is more rational. Through the experiment, the effectiveness of the calculation method and formulation is further demonstrated and validated.
Highlights
IntroductionWith the development of electronic devices and radar systems, the electromagnetic (EM)
With the development of electronic devices and radar systems, the electromagnetic (EM)environment becomes more increasingly complex than ever before [1,2,3]
The results demonstrate that the proposed active radar cross section (ARCS) concept obtains better universality compared with previous work
Summary
With the development of electronic devices and radar systems, the electromagnetic (EM). A series of software has been proposed to analyze, calculate and predict RCS in complex structures [50,51]. When the radar waves and the multi-radiators have the same frequencies and phases, the coherent characteristics have not been simulated in previous work. The simulation of scattering properties in complex EM environments, especially the analyzing and the modeling of the incidence of multi-radiators and the coherent external disturbances, has become a frontier science. The active RCS (ARCS) concept and the ARCS calculation formulation are proposed to analyze the complex structures in complex EM environments. It is indicated in the results that the proposed ACRS shows its advantage in Sensors 2020, 20, x FOR PEER REVIEW analyzing coherent problems for complex structures in complex EM environments, especially active cancellation, EM stealth and so on
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