我们系统地研究了激光在湍流大气中的光强起伏与光斑统计特征。
The statistical characteristics of the laser log-intensity fluctuation and beam pattern in a turbulent atmosphere were studied systematically.
本文讨论了大气微波辐射起伏的机制。
The mechanism of the fluctuation of the atmospheric microwave emission has been discussed in this paper.
到达角起伏和大气闪烁是在研究大气湍流对激光传输影响中的两个重要效应。
Arrival-of-angle fluctuation and atmospheric scintillation are two important effects in the research of laser propagate in atmospheric turbulence.
精确测量大气的折射率起伏，对于研究大气的光学性质及其在环境监测中的应用有着重要的意义。
Exactly measurement of the fluctuation of the atmosphere refractivity is important for the research on the optical property of atmosphere an and it's application on the environment detection.
本文讨论了大气湍流引起的强度起伏和相位起伏对激光雷达跟踪系统测角精度的影响。
In this peper, it is discussed about the laser radar's angular tracking errors caused by atmospheric turbulence which results in intensity fluctuation and phase fluctuation.
文中介绍了激光信号通过随机大气信道时，大气湍流效应造成了光束抖动、强度起伏，光束扩展和像点抖动等现象。
In this paper the dithering of beam light, the undulating of beam intension, spread of the beam light and the dithering of image are introduced.
大气折射率起伏主要是由温度和湿度起伏引起的。
The refractive index fluctuation of atmosphere are mainly caused by variations in temperature and humidity.
精确测量大气的折射率起伏，对于研究大气的光学性质及其在环境监测中的应用有着重要的意义。
Exactly measurement of the fluctuation of the atmosphere refractivity is important for the research on the optical property of atmosphere an and it's application on the environmental detection.
提出了任意起伏条件下湍流大气中光波闪烁方差的通用表达式。
A general expression of the scintillation index is proposed for optical wave propagating in turbulent atmosphere under arbitrary fluctuation conditions.
大气湍流对光波传播的影响主要是由于大气随机起伏的湍流引起折射率的随机起伏，破坏了光波的相干性。
Random fluctuation of turbulence brings random fluctuation of refractive index and makes atmosphere become a random fluctuation medium, which destroys the coherence of light-wave.
该实验通过对比的方法验证后向散射的到达角起伏是否可以反映大气湍流强度。
The experiment was used to validate that whether the back-scattering angle-of-arrival fluctuation can describe the atmosphere structure of refractive index Cn2 by method of contract.
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。
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.
利用湍流池模拟大气对流边界层的光传输，同时测量了到达角起伏和光路上的温度脉动。
With the help of the turbulent cell, an experiment is carried out to simulate light propagation in atmospheric convective boundary layer.
假设大气湍流为弱起伏湍流，用高斯噪声模拟了大气湍流的影响。
The atmosphere turbulence was seen as weak fluctuation turbulence, and Gaussian noise was used to simulate influence of atmosphere turbulence on transmission of laser beam.
本文运用几何光学近似，导出了湍流大气中束状反射回波的到达角起伏表达式。
Based on geometrical optics formulation, this paper deals with the problem of Angle of arrival influence of reflected beam by a reflector, and derived the expression of Angle of arrival variance.
于2006年3月至6月，进行了城市环境下3.5公里激光传输实验，测量了接收光强起伏和大气湍流强度。
An experiment of laser propagation was carried out at the urban terrain range of 3.5 km during the period of March to May of 2006.
于2006年3月至6月，进行了城市环境下3.5公里激光传输实验，测量了接收光强起伏和大气湍流强度。
An experiment of laser propagation was carried out at the urban terrain range of 3.5 km during the period of March to May of 2006.
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