| 摘要: |
| 现代联合作战中，有效的频谱感知可以提高电磁态势感知能力，避免自扰互扰问题的出现。通过将传统集中式频谱感知架构中的非指挥节点拆分为次级节点和三级节点，以能量感知为基本方法并对感知信息进行二次融合，形成了分布式频谱感知模型。仿真结果表明，分布式频谱感知模型不但在感知性能上较传统感知模型提高5%左右，而且在感知性能相同的条件下，指挥节点的带宽拥堵率仅为传统模型的10%~20%，达到了提高频谱利用率的目的。 |
| 关键词: 空中联合作战 认知无线电 频谱感知 能量检测 信息融 |
| DOI： |
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| 基金项目: |
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| A spectrum sensing method for joint air operations |
| BING Yu-chen,LIU Hong,YANG Jian-bo,LIU Lin |
| () |
| Abstract: |
| Spectrum sensing can effectively improve the electromagnetic situation awareness and avoid self interference in modern joint operations.This paper proposes a distributed spectrum sensing model which splits the non-command nodes of traditional spectrum sensing model into the secondary nodes and the thirdly nodes.Then a two times information fusion method based on energy sensing is used to reach the goal.The simulation results indication that this model improves the performance of spectrum sensing about 3% and also greatly reduces the bandwidth congestion rates about 10%~20% of command nodes under the same conditions so that the spectrum utilization is improved. |
| Key words: joint air operations cognitive radio spectrum sensing energy detection information fusion |
《电讯技术》编辑部 