Relay communications link which is an important part of Chang’e—4 mission,ensures reliable communications between lunar probes and earth stations.In accordance with test requests of Chang’e—4 relay communications link,test and verification scheme is designed,including test process,test mode,electrical ground support equipment (EGSE),and test data processing, which supports system—level ground verification of Chang’e—4 relay communications link.The technologies and experiences summarized in this paper can provide a reference for development and test of China’s future deep space probes.%中继通信链路是嫦娥四号任务的关键组成部分之一,为月球探测器与地球站可靠通信提供保证.文章针对嫦娥四号中继通信链路地面测试需求,制定了测试验证方案,包括测试流程、测试模式、地面测试系统、测试数据处理等,支持了嫦娥四号中继通信链路系统级地面验证.总结的技术和经验可为我国后续深空探测器研制和测试工作提供参考.
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