基于APT控制技术的Ku/Ka双频机载动中通系统设计

随着航空用户对上网需求的逐步增加,结合航天制造、卫星通信及惯性稳定平台技术,设计了一种基于APT控制技术的Ku/Ka双频机载动中通系统。该系统具有较高的高动态响应及精准卫星捕获、跟踪能力;APT控制技术融合陀螺稳定、漂移补偿、多数据融合及精准伺服控制关键技术,系统采用程序跟踪、动态跟踪控制策略,可根据ModMan控制指令在不同载体扰动情况下迅速完成Ku、Ka天线切换及对星,保障链路通信正常,以最佳带宽服务理念为航空用户提供多层次通信服务保障。目前已完成样机研制和地面跑车模拟、摇摆台试验,技术指标符合总体设计要求具有良好的应用前景。

Design of Ku/Ka dual-frequency airborne moving communication system based on APT control technology

With the gradual increase of aviation users" demand for Internet access, combining with aerospace manufacturing, satellite communication and inertial stabilization platform technology, a Ku/Ka dual-frequency airborne dynamic communication system based on APT control technology is designed. The system has high dynamic response and accurate satellite acquisition and tracking capability. APT control technology integrates the key technologies of gyroscopic stability, drift compensation, multi-data fusion and precise servo control. The system adopts program tracking and dynamic tracking control strategy, Ku and Ka antenna switching and satellite alignment can be quickly completed under different carrier disturbance according to ModMan control instructions, so as to ensure normal link communication and provide multi-level communication service guarantee for aviation users with the best bandwidth service concept. At present, the prototype development, simulation of ground sports car and test of swing table have been completed. The technical performance is conformed with the overall design requirements,and it has a good application prospect.