上行副遥控冗余设计是无人机战场生存能力的重要保证，为检验连续波辐照环境下某型无人机副遥控数据链系统的可靠性，基于连续波辐射发射系统建立了无人机连续波辐照效应试验平台，以典型“失锁”效应作为受干扰判别依据，开展了副遥控数据链系统辐照效应研究，利用电磁仿真和注入法分析了“失锁”效应机理和主要干扰耦合路径。试验结果表明：在某些敏感频点，副遥控链路会出现通信中断现象，即表现为失锁状态，最小失锁阈值为0.098 V/m，且出现失锁现象的电场阈值随辐射场极化方向改变。经过电磁仿真试验可知,天线是无人机副遥控系统的主要干扰耦合路径，导致副遥控数据链产生失锁的频点均与工作频段相关，电磁能量通过前门耦合传导进入机载收发组合内部，当信噪比达到一定程度时,解调输出误码率过大，通信随即中断,产生失锁。

Redundant design of uplink vice telecontrol is important to ensure UAV’s battlefield survivability. In order to test the reliability of the UAV’s vice telecontrol datalink system under continuous wave radiation environment, a test platform of UAV continuous wave radiation is established based on continuous wave radiation emission system. The typical effect of unlock is regarded as the basis of interference. The radiation effect on vice telecontrol datalink system is carried out to analyze the effective mechanism of unlock and key coupling path of interference through electromagnetic simulation and injection method. The result shows that, in some sensitive frequency points, vice telecontrol datalink will appear disruption on communication, that performs unlock at the threshold of 0.098V/m. Besides, the electric field threshold of unlock changes with the polarization of the radiation field. Through electromagnetic simulation, it is concluded that the antenna is the main interference coupling path of UAV vice telecontrol system. Analysis shows that harmonics of unlock points contact with the band of UAV. Electromagnetic energy is coupled into the UAV internal transceiver combination through the front door. When the signal to noise ratio (SNR) reaches a certain extent, a demodulated output of bit error rate (BER) is large enough so that the communication interrupts and appears unlock.