孔径不匹配在星地光通信中对对准信息的影响  

Impact of mismatching aperture in satellite-ground laser communication on pointing information

作　　者：张亚奎[1] 向劲松[1] 吕翊[1] 

机构地区：[1]重庆邮电大学,重庆400065

出　　处：《数字通信》2009年第2期71-73,共3页Digital Communications and Networks

基　　金：重庆市科委自然科学基金CST(2008BB2414);重庆市教委自然科学基金(KJ080513);重庆邮电大学(A2007-46)

摘　　要：介绍了星地光通信中因地面站激光发射天线孔径和光探测器孔径不匹配而引起的对准误差。通过相位屏数值模拟大气湍流效应,分析了大气湍流效应对对准误差的影响,并分析在两孔径为同心及非同心情况下,随孔径大小的变化对准信息误差的变化趋势,指出了合理的孔径配置。The tacking turbulence-induced tilt errors caused by the mismatching apertures of the ground station＇s transmitting antenna and detector in the satellite-ground laser communication were introduced. The tracking turbulence-induced tilt errors were analyzed with the numerical simulation of the atmospheric turbulence. Under the condition that the two apertures are off-axis configuration and on-axis configuration, the trend of the tilt errors with the aperture＇s change was discussed, and the suitable aperture configurations were pointed out.

关 键 词：大气湍流 对准误差 孔径不匹配 星地光通信 

分 类 号：TN929.13[电子电信—通信与信息系统]