摘要
使用干扰预测方程预测频域冲突时无线电设备间的电磁互扰,以寻求满足主用户网络和认知无线电网络间的电磁兼容所需的空域和能量域条件,综合考虑距离、大气损耗、可视距离等因素对设备间的互扰强度和工作效果的影响。从仿真的结果看,一般情况下两系统间超过十几千米,就会因功率或视距的原因使主用户和认知用户两个网络之间实现能量或视距的隔离,达到电磁兼容。
The interference among wireless equipments is forecasted by using interference forecasting equations when they work in same frequency, in order to find the EMC condition in airspace or energy fields in which the main user net and the cognitive wireless net can work together. In this paper, the loss caused by distance, atmosphere and orthoptic distance etc. is considered, affecting the mutual jamming and work condition. The simulating results show that, when the distance is longer then 10 kilometers, the isolation of energy or line of sight appears between the main user and coguitive user because of the energy or orthoptic distance, so the EMC is realized.
出处
《电视技术》
北大核心
2012年第17期102-105,共4页
Video Engineering
基金
国家自然科学基金项目(60901069)
