Beam synthesis and target detection based on aperture coding metasurface

The coding-controlled phased array radar built the bridge between digital codes and physically metamaterial particle, which works in microwave frequency band. The links and differences will be discussed between this new radar and traditional phased array radar, then the mathematical theory illustrates how the direction (including elevation and azimuth) is controlled by coding combination. Metasurface antenna can also achieve good performance of target detection based on beam-scanning. This is proved by the simulation in the situation of single point target where the distance, azimuth and elevation are detected by impulse compression operation. Furthermore, the moving target tracking is also realized by metasurface antenna, assuming that the radial velocity and the angular velocity of the target follow the normal distribution of known mean and variance.