指向误差下高斯光束几何衰减模型分析
Analysis of Geometric Attenuation Model of Gaussian Beam under Pointing Error
查看参考文献18篇
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文摘
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无线光通信系统中的指向误差对光功率的几何衰减产生影响,导致系统接收光功率的下降,影响系统性能.为了精确分析指向误差对无线光通信系统性能的影响,本文基于高斯光束光强分布推导了圆形孔径下无线光通信系统接收光功率几何衰减模型的精确解析解,仿真了不同参数条件下指向误差对系统几何衰减的影响,验证了解析解的准确性,并与现有模型进行了比较分析.结果表明,采用现有近似模型计算几何衰减存在的误差不能忽略,因此在圆形孔径下进行模型推导更符合实际情况.在无线光通信点对点通信及组网通信时,采用本文所得的指向误差下的高斯光束几何衰减解析模型更为精确. |
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其他语种文摘
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Pointing error in wireless optical communication system has an impact on the geometric attenuation of the received optical power, resulting in a decrease in the received optical power of the system and affecting the performance of the system. In order to accurately analyze the effect of pointing error on the performance of wireless optical communication system, based on the intensity distribution of Gaussian beam, the accurate analytical solution of the geometric attenuation model of received optical power in wireless optical communication system with circular aperture is derived. The influence of pointing error on the geometric attenuation of the system under different parameters is simulated, and the accuracy of the analytical solution is verified and compared with the existing model. The results show that there are errors in using the existing approximate model to calculate the geometric attenuation, and the existing errors cannot be ignored,therefore the model derivation under the circular aperture is more in line with the actual situation. In the point-to-point communication and networking communication of wireless optical communication, it is more accurate to use the Gaussian beam geometric attenuation analytical model under pointing error. |
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来源
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电子学报
,2021,49(10):1893-1899 【核心库】
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DOI
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10.12263/DZXB.20210285
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关键词
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无线光通信
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高斯光束
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指向误差
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几何衰减
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地址
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1.
海军航空大学航空通信教研室, 山东, 烟台, 264001
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信号与信息系统山东省重点实验室, 信号与信息系统山东省重点实验室, 山东, 烟台, 264001
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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0372-2112 |
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学科
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物理学;电子技术、通信技术 |
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基金
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山东省泰山学者建设工程专项
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信号与信息系统山东省重点实验室经费资助项目
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文献收藏号
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CSCD:7090168
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