Research on Scattering Characteristics of Swarm Targets

Swarm targets are becoming increasingly prevalent in both military and civilian domains. Research on the electromagnetic scattering characteristics of swarm targets holds significant value for the development of countermeasure strategies. Obtaining dynamic measurement data for swarm targets is challenging and costly, exacerbated by the complex coupling interactions among the target group. Consequently, due to data scarcity, there is currently an insufficiency in the research on the scattering characteristics of swarm targets. This paper begins by conducting a detailed investigation into the coupling effects among metallic sphere clusters, focusing on the fluctuation of radar cross section and time-frequency features. Furthermore, a parametric modeling study is conducted to investigate the coupling phenomenon, and the influence of distance and azimuth on the intensity of coupling between targets is further analyzed in terms of the coupling mechanism. The results presented in this paper can offer valuable insights for subsequent research on the scattering characteristics of swarm targets.