| 抗湍流大气衰落的光学阵列天线特性 |
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| 引用本文： | 熊杰,元秀华. 抗湍流大气衰落的光学阵列天线特性[J]. 红外与激光工程, 2011, 40(10): 1969-1973 |
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| 作者姓名： | 熊杰 元秀华 |
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| 作者单位： | 华中科技大学武汉光电国家实验室/光电子科学与工程学院,湖北武汉,430074 |
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| 基金项目： | 国家863计划(2008AA01Z207); 国家自然科学基金(61077058) |
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| 摘 要： | 针对湍流大气光传输特性,研究分析了一种光学阵列接收天线的特性.光学阵列接收天线在光路上使用移相器和耦合器等光学元件对光信号进行处理合并,使天线的输出信号的信噪比最大；根据对天线分析计算得到的信号分布特点,在天线合理分配安装和使用小尺寸透镜时,可增大光学系统视场角.经过仿真计算,与单透镜在相同接收条件下的接收端信号的信噪...
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| 关 键 词： | 空间光通信 大气湍流 分集接收 视场角 |
Array optical antenna for the mitigation of atmospheric fading |
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| Xiong Jie,Yuan Xiuhua. Array optical antenna for the mitigation of atmospheric fading[J]. Infrared and Laser Engineering, 2011, 40(10): 1969-1973 |
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| Authors: | Xiong Jie Yuan Xiuhua |
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| Affiliation: | Xiong Jie,Yuan Xiuhua(Wuhan National Laboratory for Optoelectronics/College of Optoelectronic Science and Engineering,Huazhong University of Science and Technology,Wuhan 430074,China) |
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| Abstract: | To overcome the influences of turbulent atmosphere,the characteristics of a novel array optical receiving antenna for free space optical communication system were proposed.The array optical receiving antenna was composed of optical components such as some lenses,phase-shifters and couplers,which were used to merge receiving light signals so that the final output signal from the antenna had the largest SNR.By means of calculation and analyses,the distribution characteristic of the signal from the optical ant... |
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| Keywords: | space optical communication atmospheric turbulence spatial diversity reception field of view(FOV) |
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