国产欧美精品一区二区,中文字幕专区在线亚洲,国产精品美女网站在线观看,艾秋果冻传媒2021精品,在线免费一区二区,久久久久久青草大香综合精品,日韩美aaa特级毛片,欧美成人精品午夜免费影视

In-orbit tests(IOT) of payloads on communication satellites are important work. In actual work, there are sorts of the IOT items which will cost long time, and the measurement precision is highly required, manual work can’t meet the test requirement, so it is necessary to develop an IOT system of ground station. Switch network is the important part of IOT system. The function and necessity of switch network in this system is introduced in this paper, and we analyze the working principle and functions of switch network, then put forward its design and realization. At last we analyze the test report. After its being in use, the test efficiency and measurement precision and automation level are highly promoted, then it meets the design requirement.