随着毫米波通信技术的逐步成熟,高频点高速率的卫星载荷数据传输需求越来越大。基于毫米波卫星信号的高动态窄波束的特点,地面伺服系统的高动态条件下稳定跟踪成为保证数据质量的关键。考虑到目前天线伺服控制系统动态特性无法满足窄波束信号的稳定跟踪,需对伺服控制模型进行适应性改进。针对大口径窄波束天线跟踪的特殊要求,分析复合控制的动态特性,并结合工程应用情况提出仿真模型,优化实用性复合控制方案,满足高动态窄波束天线的高精度稳定跟踪要求,为后续大口径窄波束天线地面高精度跟踪提供改进方案。

With the gradual maturity of millimeter wave communication technology, the demand for high frequency and high speed satellite load data transmission is increasing. Based on the characteristics of high dynamic narrow beam of wave satellite signal, stable tracking under high dynamic condition of ground servo system becomes the key to ensure data quality. Considering that the current dynamic characteristics of the antenna servo control system cannot meet the stable tracking of narrow beam signals, it is necessary to make adaptive improvements to the servo control model. Analyzes the dynamic characteristics of composite control for the special requirements of tracking large aperture narrow beam antennas, and proposes simulation models based on engineering applications to optimize practical composite control schemes, meeting the high-precision and stable tracking requirements of high dynamic narrow beam antennas. It provides improvement plans for subsequent high-precision ground tracking of large aperture narrow beam antennas.

TN927