VLBI台站布线的电磁兼容性分析

An Analysis of Electromagnetic Compatibility of Cable Wiring of a VLBI Station

介绍了乌鲁木齐南山观测站VLBI(Very Long Baseline Interferometry)台站的组成及电磁兼容性特点,并针对系统内布线特点进行电磁兼容性分析,给出了克服线缆间相互干扰的措施和方法,为工程设计人员在VLBI台站布线设计及维护方面提供一些有效的解决方案,具有一定的工程意义。

With the development of radio astronomy, the EMC （ electromagnetic compatibility） problems of radio observing systems are becoming increasingly severe. Mastering cable wiring of such systems can benefit EMC project management and help improving system design. Based on the components and characteristics of electromagnetic compatibility of the Urumqi VLBI station, we analyze the electromagnetic compatibility of the systems under the adopted cable wiring. We subsequently propose shielding, filtering, and grounding methods to provide engineers valuable schemes to solve practical problems of electromagnetic compatibility. However, our work is only an initial stage, and more practical work is needed in the future according to our tests and simulations.