某型模型验证机机载系统电磁干扰抑制设计

针对某型模型验证机机载系统设计中出现的电磁干扰现象,分析了系统中电磁干扰产生的原因,讨论了系统设计中的屏蔽技术、滤波和接地防护技术,以及各子系统间的布局、布线方法对系统电磁兼容性能的影响,详细讨论了电磁干扰抑制方法在系统优化设计中的应用.通过飞行试验验证表明,所采取的电磁干扰抑制设计方法很好地避免了不同电子系统之间的电磁干扰,有效地提升了系统的可靠性和模型验证机飞行的安全性.

Electromagnetic Interference Suppression Design of Airborne System for A Certain Type of Test Model

Aiming at the electromagnetic interference discovered in the design of a certain type of model,the causes of electromagnetic interference in the system are analyzed,and the shielding technology,filtering and grounding protection technology are discussed.Meanwhile,the influences of the layout and routing method on the electromagnetic compatibility of the system are talked about,the application of electromagnetic interference suppression method in system optimization design is discussed in detail.The flight test proves that the method of electromagnetic interference suppression is a good way to avoid the electromagnetic interference between different electronic systems,which can effectively improve the reliability and safety of the model.