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。
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.
出处
《中国激光》
EI
CAS
CSCD
北大核心
1999年第5期411-414,共4页
Chinese Journal of Lasers
