CAJ | 학술논문

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。
현대연합작전중，유효적빈보감지가이제고전자태세감지능력，피면자우호우문제적출현。통과장전통집중식빈보감지가구중적비지휘절점탁분위차급절점화삼급절점，이능량감지위기본방법병대감지신식진행이차융합，형성료분포식빈보감지모형。방진결과표명，분포식빈보감지모형불단재감지성능상교전통감지모형제고5%좌우，이차재감지성능상동적조건하，지휘절점적대관옹도솔부위전통모형적10%~20%，체도료제고빈보이용솔적목적。
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.