【作者】 刘发林； 尤览；

【Author】 Falin Liu Lan You Department of Electronic Engineering and Information Science,USTC

【机构】 中国科学技术大学电子工程与信息科学系；

【摘要】 本文面向利用自身节点构成天线阵列的无线传感器网络,提出了一种波束合成策略。针对在选用非全向性天线时带来的天线轴偏移影响,通过对节点进行相位和辐射功率调整,在保证合成方向图主瓣特性的同时,很好地降低了旁瓣等级。更多还原

【Abstract】 A beamforming approach is presented in this paper for wireless sensor networks,wherein sensor nodes are used to form a distributed antenna array.Phase and radiation power adjustments are studied to deal with the effects of antenna beam axis excursion, while nodes are equipped with nonisotropic antennas.Simulation results show that the side lobe level is reduced effectively as the main lobe remains almost unchanged.更多还原