基于TDC的无人机数据链抗干扰技术研究

Research on Anti-Jamming Technology of UAV Data-Link Based on TDC

针对目前无人机数据链系统中传统扩频等技术在抗干扰性能上的局限,研究了基于变换域通信(TDC)的无人机数据链抗干扰技术。在研究变换域通信基本原理的基础上,结合无人机数据链的特点,给出了基于TDC的无人机数据链系统发射机和接收机模型,并通过仿真与常规直扩系统在窄带干扰中的误码率性能比较,结果表明基于TDC的数据链系统抗窄带干扰性能明显优于常规直扩系统。研究表明变换域通信技术应用于无人机数据链可有效提高数据链抗干扰能力。

As the anti-jamming performance of conventional spread spectrum technology used on present UAV （ unmanned aerial vehicle ） data-link is limited, an anti-jamming technology for UAV data-link based on trans- form domain communication（TDC） is studied. The fundamental principles of TDC is studied firstly. Then the transmitter model and receiver model of UAV data-link based on TDC are proposed according to the character- istics of UAV data-link. The bit error rate performances of TDC and DSSS under narrow band jamming are sim- ulated and compared. The result shows that the anti-jamming performance of UAV data-link based on TDC is evidently better than DSSS. The reaseareh shows that the application of TDC to UAV data-link can improve its anti-jamming ability effectively.