摘要
针对收发口径固有位置偏差对城市近距离激光通信系统的影响进行了分析,建立了链路能量与固有位置误差模型,计算了不同误差下的链路能量情况,并分析了二者关系。以固有位置误差15 mm为例,计算了不同距离下的链路能量,在基础上,进行了实际的通信验证试验,给出具体试验操作流程,并得到了距离10～40 m的实测数据。实验数据表明,与理论偏差不超过0. 52 dB,验证了理论能量模型的正确性。该能量模型可用于指导近距离通信端机的设计和链路搭建,同时,小型化光端机的成功研制及通信试验可有效加速城市间近距离下的民用通信领域应用。
For the closed distance communication among urban buildings,the influence of inherent position error be-tween the receiving aperture and the transmitting aperture is analyzed.The new model of link energy with inherent po-sition error is established.The link energy data are calculated under different inherent position error,and the relation-ship between the link energy and the inherent position error is analyzed.Taking the inherent position error of15mm as an example,the link energy under different distances is calculated.On the basis,the actual communication verification test is conducted,the specific test operation process is given and the measured data with the distance of10m,40m and1000m are obtained.Comparing with the theory data,the experimental data shows that the maximum error is less than0.52dB.The correctness of the theoretical energy model is verified.The energy model can be used to guide the design of remote distance communication terminal.At the same time,the successfully development and communication test can effectively accelerate the application of civil communication for urban buildings.
作者
安岩
许燚赟
董科研
李欣航
郑欣
AN Yan;XU Yi-yun;DONG Ke-yan;LI Xin-hang;ZHENG Xin(Institute of Space Photoelectric Technology,Changchun University of Science and Technology,Jilin130022,China;Opto-electronics Engineer Institute,Changchun University of Science and Technology,Jilin130022,China;Changchun Institute of Biological Products Co.,Ltd.,Jilin130012,China)
出处
《激光与红外》
CAS
CSCD
北大核心
2018年第12期1526-1530,共5页
Laser & Infrared
基金
吉林省重大科技成果转化项目(No.20160301005GX)
长春市科技发展计划项目(No.18DY016)资助
关键词
激光通信
便携式
近距离通信
链路能量计算
laser communication
portable type
close range communication
link energy calculation
