一种基于UQPSK体制的无人机数据链设计与实现

Design and Implementation of an Unmanned Aerial Vehicle Data Link Based on UQPSK

无人机技术和载荷设备的不断升级,对地面站与无人机终端之间数据通信的可靠性和有效性等要素提出了更高的要求。结合传输数据流需求的非对称性,分析了非平衡四相移键控(Unbalanced Quadrature Phase Shift Keying,UQPSK)通信体制的优势,通过Matlab进行可行性仿真分析,并采用现场可编程门阵列(Field Programmable Gate Array,FPGA)进行实现。测试结果表明,在通信距离100 km、图像数据16 Mb/s、遥测数据51.2 kb/s的情况下,该方案能够实现小于10^(-6)的误码率。

With the development of unmanned aerial vehicle(UAV)technology and payload equipment,the higher reliability and effectiveness of data communication between ground station and UAV terminal is required.According to the asymmetry of data transmission requirements,the advantages of unbalanced quadrature phase shift keying(UQPSK)communication system is analyzed,the feasibility is discussed by Matlab simulation,and the system is implemented by field programmable gate array(FPGA).The test results show that when the communication distance is 100 km,the image data is 16 Mb/s and the telemetry data is 51.2 kb/s,the communication system can ensure the bit error rate to be less than 10^(-6).