通过对无人机数据链各项指标的研究,本文首先提出了一种可以在飞行试验中进行数据链时延指标的测试方法。针对系统架构,提出了一种可以应用于飞行试验的PCM架构数据链时延测试系统,并对系统的数据获取方法、数据格式及事后数据处理方法进行了研究。为后续数据链其他指标的试飞测试研究打下基础。 Through the research on each indicator of UAV data link, this paper first proposed a test method which can make the data link delay index in flight test. In view of the system architecture, a time-delay test system for data link of PCM architecture which can be used in flight test is proposed. The data acquisition method, data format and ex post data processing method of the system are studied. Which laid the foundation for the flight test research of other indexes in the following data chain.