关键词: 通信车；电磁兼容性；通讯车载单元；电磁干扰

Abstract: With the rapid development of information technology, the communication system has been severely tested in an extremely complex electromagnetic environment composed of various electromagnetic signals. As a new generation of vehicle-mounted communication unit, how to effectively avoid the electromagnetic interference in the complex vehicle-mounted communication system and ensure smooth communication has become one of the urgent problems to be solved. Based on the full analysis of the electromagnetic interference elements of the new multi-channel communication vehicle, this paper puts forward the electromagnetic compatibility design scheme of the new multi-channel communication vehicle. Through the electromagnetic compatibility design of antenna layout, equipment layout, wiring, filtering, grounding and shielding, the electromagnetic interference of vehicle-mounted communication unit is effectively reduced, and the communication quality of communication vehicles is guaranteed. It also provides a design idea and a method worthy of reference for the electromagnetic compatibility design of other similar communication vehicles.

Key words: Communication vehicle; Electromagnetic compatibility; Vehicle-mounted communication unit; Electromagnetic interference