Design of Visual Positioning Algorithms for Tiny Pads on Surface of Conformal Antenna
The conformal antenna is a new type of radar antenna with a special shape,which has a low profile and low scattering area.It is one of the important development trends of future radar antenna.Currently,the assembly of conformal antenna is shifting from manual assembly to automated assembly to improve production efficiency and batch production consistency.However,due to the small size and large number of pads on the surface of conformal antenna and their distribution on complex curved surfaces,it is difficult for the existing visual positioning algorithms to meet the requirements of practical use.For this reason,a multi-objective sub-pixel positioning algorithm is proposed in this paper.The algorithm combines template matching and sub-pixel positioning algorithms to give accurate location information for multiple pads simultaneously.The simulation analysis and experimental verification show that the visual positioning accuracy of this algorithm can reach 5µm,which effectively improves the assembly quality of the conformal antenna.
万方数据
维普
