The maritime unmanned aircraft system consists of an aircraft system, a shipborne system, a mission payload and an integrated support system. The aircraft system includes the vehicle platform, the propulsion system, the flight control system, the navigation system, the on-board part of the take-off/landing system, and the data-link on-board terminal, etc.; the shipboard system includes the on-board command and control sub-systems (mission control station, take-off and landing control station, and take-off and landing guidance station), the on-board part of the take-off/landing system, the data-link on-board terminal (link station), the intelligence processing system, and the shipboard auxiliary equipments, etc.; the mission payload is the equipment for the UAS to fulfil its combat mission. The mission payload is the equipment for UAS to complete the combat mission, and the mission payload on board mainly consists of photoelectric reconnaissance, SAR imaging, meteorological detection, surveying and mapping, communication relay, technical reconnaissance, electronic countermeasures, and airborne weapons and other equipment. The comprehensive security system is the support guarantee for the UAS to work normally, which mainly includes human resources, training, UAS technical maintenance and other security resources, as well as security equipment such as meteorological detection, communication and airport facilities. Figure 3.1 shows the block diagram of UAS.