【摘要】 由于设备性能的限制,民航飞机目前使用的机载防撞系统TCASⅡ不能适用于编队飞行防撞。为了解决飞机编队飞行防撞以及与民航飞机TCASⅡ兼容的问题,给出了一种基于二次雷达(SSR)和ADS-B混合监视的机载编队防撞系统的设计方案。该方案采用了TCAS主动监视和被动监视相结合的方法,利用唯一的24位S模式地址来识别和归类目标飞机,将TCAS的监视数据和ADS-B的监视数据进行数据融合来完成对目标飞机的监视和跟踪。通过将大型编队划分为多个编队单元的方法,由长机负责保持各个编队单元之间的安全间距。采用收发器将长机产生的位置保持和碰撞避免的操纵指令通过高频数据链路传送给各个编队单元,各个编队成员按照操纵指令调整自己飞机的位置,完成对整个编队的位置保持和碰撞避免的集中控制和分散执行。该方案可以为机载编队防撞系统的设计和实现提供参考和帮助。更多还原

【Abstract】 The Traffic Alert and Collision Avoidance System(TCASⅡ) which is widely used in civil aviation is not suitable for formation flight due to the performance limitations of equipment.In order to solve the problem of collision avoidance in formation flight and the product compatibility between collision avoidance system and TCASⅡ of civil aviation,a design scheme of collision avoidance system based on Secondary Surveillance Radar(SSR) and ADS-B hybrid surveillance for formation flight is presented.A hybrid surveillance method of active TCAS surveillance and passive TCAS surveillance is used in this design,and the identification and classification of object airplanes is accomplished by using unique 24 bits mode S address.ADS-B data and TCAS surveillance data are fused based on the data fusion algorithm to monitor and track those object airplanes.A large scale formation is split into multiple smaller cells with a cell leader,while a master leader is responsible for maintaining safe separation between these multiple cells.Steering commands generated by the maser leader to maintain separation and avoid collision are transmitted to cell leaders by high speed digital communication link through a transceiver.Individual formation member uses these steering commands to positioning itself with respect to the leader.So the large scale formation to maintain separation and avoid collision can be realized by using centralized control and decentralized execution of multiple aircraft formation cells.The scheme design provides some references and assistance for design and produce collision avoidance system used in formation flight.更多还原