Characteristic Analysis of Coupled Scattering Mechanism of Creeping Waves in Complex Targets

This paper investigates the contribution of multiple coupling effects caused by creeping waves in the scattering characteristics of complex targets. Firstly, ray tracing was conducted on the creeping waves on the surface of complex targets. Compared to previous studies that only explored the propagation path of the creeping waves, this paper additionally examined the spatial trajectory of the radiation rays emitted by the creeping waves, focusing on the reflection process of the radiation rays. After clarifying the ray path of the creeping-reflection coupling mechanism, this paper combines UTD with GO to analyze the scattering field of this coupling mechanism, and provides a calculation method. Through the examples in this paper, it can be seen that the simulation of target characteristics, taking the creeping waves and their coupling effects into account, expands and completes the types of scattering mechanisms, and more realistically reflects the radar target characteristics of complex targets.