对于当前没有较完备的无人机通信系统实测数据时，进行无人机通信信道的统计模型建立和仿真等方面的研究具有重要意义。
The model built in this paper has great significance to performance simulation of the UAV communication channel when no measurement data are available.
AAI公司和CERDEC中心正考虑将多种有效载荷集成到无人机上，包括信号情报、传感器和通信系统。
Many payload varieties are being considered for integration, including signals intelligence, sensor and communications.
本文介绍了在舞台吊杆控制系统中，利用PLC的串行通信模块完成位置反馈信号采集和人机界面数据交换。
This paper mainly introduces signal acquisition of height-feedback and data exchange of HMI using PLC's serial communication module in stage suspender; control system.
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