国外L频段航空电子设备电磁兼容设计分析及启示

介绍了国外工作于960～1215MHzL频段航空电子设备的信号特点，对可能存在的诸多电磁兼容问题进行了分析，综合采取了频分多址、时分多址、码分多址、扩频及频带滤波等电磁兼容技术，降低了设备的电磁干扰，提高了设备的抗干扰能力，从国外设备的长期使用来看，这些技术非常成功有效。简要介绍了我国现阶段L频段设备情况，给出了四点启示，以供广大读者参考。

Analysis and Enlightenment of Electromagnetic Compatibility Design in the Foreign L Frequency Band Avionics

Signal characteristics in the 960- 1 215 MHz L frequency band foreign avionics are introduced,the possible electromagnetic compatibility problems are analysed, technologies of FDMA,TDMA,CDMA, spread spectrum, frequency band filters and so on are adopted, electromagnetic jam between equipments and systems is reduced, anti -jamming capability is improved, these ways are successful and effective by long period use of foreign equipments. And the present situation in national L frequency band equipments is introduced, four enlightenments are given for readers.