Elimination of Multi-Bounce Effect for Outdoor RCS Measurement via 3D Imaging

The outdoor RCS measurement technique is crucial for the radar and aeronautical design applications, especially in the face of large objects. Because of the background interference, the multi-bounce effect is unavoidable and will contaminate the measuring result greatly. In this paper, a novel method to eliminate the multi-bounce effect via 3D imaging technique is proposed. Compared with the traditional methods, high-resolution 3D microwave image can separate the desired image from the multi-bounce false images in the image domain by using the difference of the transmission paths. Simulation results show that this method can clearly eliminate the multi-bounce effect of the outdoor RCS measurement.