强激光与粒子束2013,Vol.25Issue(9):2262-2266,5.DOI:10.3788/HPLPB20132509.2262
斜程大气湍流中激光回波的闪烁指数
Scintillation index of echo wave in slant atmosphere turbulence
摘要
Abstract
Based on the theory of optical wave propagation in the slant path and the ITU-R atmospheric refractive index structure constant model which depends on the altitude,and considering the influence of inner scale,we studies the scintillation index from the transmitter to the target and that from the target to the receiver by using the modified Hill spectrum.The relationship of the scintillation index of the echo wave and the Fresnel rate is derived.The influences of inner scale,transmission distance,the beam's wavelength and the target height on the echo wave scintillation index are analyzed.The results show that the inner scales and the target heights have more significant effect on the scintillation index than the wavelengths and the transmission distances.关键词
大气光学/斜程湍流/目标回波/闪烁指数/修正Hill谱Key words
atmospheric optics/ turbulence in slant path/ target's echo wave/ scintillation index/ modified Hill spectrum分类
信息技术与安全科学引用本文复制引用
程玲,韦宏艳,张洪建,蔡冬梅..斜程大气湍流中激光回波的闪烁指数[J].强激光与粒子束,2013,25(9):2262-2266,5.基金项目
山西省自然科学基金项目(2013011006-3) (2013011006-3)