Abstract

Electromagnetic vortex waves have received widespread attention in many fields due to their unique physical characteristics, the phase distribution of spiral wavefronts and information modulation.The information dimension provided by vortex electromagnetic waves brings possibilities for future breakthroughs in radar detection and imaging.This article reports the development of a multi-modal electromagnetic vortex radar equipment and the first multi-modal vehicle imaging experimental verification.The key to the experiment is to simultaneously generate electromagnetic vortex wave signals of different modes and perform fusion processing.It have shown that the energy of the main lobe signal of the image target is enhanced by utilizing multimodal vortex radar information fusion, which can improve the signal-to-noise ratio of the target imaging.