Simulation Method of Ground Millimeter Wave Scattering Based on Encoded Meta-Materials

Aiming at the demand of the environmental adaptability and reliability of millimeter wave proximity fuze for the simulation test system of near-field backscattering characteristics of various backgrounds, such as land, green vegetation, and road surfaces. A simulation method for millimeter wave scattering characteristics of complex ground background is proposed. The method can realize both the background equivalent simulation in the energy dimension and the dynamic scene simulation in the time dimension, which solves the technical defects of the traditional simulation method for the dynamic test scene simulation. The test results show that the maximum error and the root mean square error of the two background simulations of grass and concrete pavement are less than 3dB, which meets the demand of simulating the dynamic detection response characteristics of various background millimeter wave near-field and provides a concise and efficient testing method for the practical performance assessment of ground proximity fuze.