| 实际大气中激光闪烁的频谱特征 |
| |
| 引用本文： | 饶瑞中,王世鹏,刘晓春,龚知本. 实际大气中激光闪烁的频谱特征[J]. 中国激光, 1999, 26(5): 411-414 |
| |
| 作者姓名： | 饶瑞中 王世鹏 刘晓春 龚知本 |
| |
| 作者单位： | 中国科学院安徽光机所大气光学研究室 |
| |
| 摘 要： | 以５线段拟合法建立了确定湍流大气中激光对数光强起伏频谱的无标度区间的方法。根据无标度区间的标度指数与起伏强度的关系发现：频谱特征在冬季和夏季明显不同，标度指数在大部分情况下与局地均匀各向同性湍流介质中的光传播理论结果存在较大差别。
|
| 关 键 词： | 光传播，大气湍流，光强起伏，频谱分析 |
| 收稿时间： | 1997-11-17 |
Characteristics of the Power Spectrum of Laser Irradiance Scintillation in a Real Atmosphere |
| |
| Rao Ruizhong Wang Shipeng Liu Xiaochun Gong Zhiben. Characteristics of the Power Spectrum of Laser Irradiance Scintillation in a Real Atmosphere[J]. Chinese Journal of Lasers, 1999, 26(5): 411-414 |
| |
| Authors: | Rao Ruizhong Wang Shipeng Liu Xiaochun Gong Zhiben |
| |
| Abstract: | A 5 line fitting method was established to determine the scaling region of the power spectrum of the log intensity of a laser beam in the turbulent atmosphere. From the relationship between the scaling exponent and the scintillation index we found that the characteristic of the power spectrum is different for the winter and the summer. In most cases the scaling exponents depart from theoretical values for a local isotropic turbulent medium. |
| |
| Keywords: | light propagation turbulence scintillation power spectrum |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
