强激光与粒子束2012，Vol.24Issue(6)：1349-1352,4.DOI:10.3788/HPLPB20122406.1349
实际大气中闪烁指数测量的数据处理
Data processing of scintillation index measurement in real atmosphere
摘要
Abstract
Considering system background noise, detector inherent noise and shot noise, the mathematical model of scintillation index measurement system was amended and the current method for data processing was modified. An experiment of laser propagation was carried out at the range of 1 km, and the experimental data were processed with the original and the modified methods. The results show that the amended model is more consistent with experimental data than the original one; shot noise is one order of magnitude larger than system background noise and it influences the accuracy of measurement seriously! the fluctuation of signal-to-noise ratio(SNR) has less influence on the modified method than on the original method; and the accuracy of the modified method is higher than the original one in low-SNR condition.关键词
大气光学/大气湍流/闪烁指数/数据处理/散粒噪声Key words
atmospheric optics/atmospheric turbulence/scintillation index/data processing/shot noise分类
天文与地球科学引用本文复制引用
李菲,吴毅,侯再红..实际大气中闪烁指数测量的数据处理[J].强激光与粒子束,2012,24(6):1349-1352,4.基金项目
国家高技术发展计划项目 （）
