As the demand for high-performance antennas in modern applications such as satellite communications and radio astronomy continues to grow, system pointing accuracy has become one of the core metrics determining overall performance. Traditional design approaches typically optimize the antenna structure, drive system, and pointing controller in isolation, which often leads to poor matching among structural parameters, transmission elements, and controller gains. This mismatch constrains further improvements in pointing accuracy and makes it difficult to satisfy increasingly stringent engineering requirements. To address this issue, based on parametric models of the antenna reflector structure and drive train and in conjunction with a classical PID control algorithm, this study proposes an integrated optimization design method for antenna pointing control systems. By jointly considering the coupled effects among the structure, drive, and control, and by taking electrical-axis pointing accuracy as the primary optimization objective, the method achieves system-level co-design and significantly improves pointing performance. A case study on a 7.3-m antenna shows that after optimization the maximum electrical-axis pointing error is reduced to 0.0094° (33.84″), and the root-mean-square error is reduced to 0.0033° (11.88″), validating the effectiveness and engineering applicability of the proposed method.
(28817) et al. (Thu,) studied this question.