用等离子体动力论导出的动力形状因子研究尘埃等离子体的散射功率谱。
The scatter spectrum of radio waves by a dusty plasma has been studed with the dynamic factor which was derived from the kinetic theory.
当目标处于聚焦天线焦平面上时，可通过选择口径分布来提高目标的后向散射功率。
When a target is placed in the focal plane of a focused aperture antenna, the backscattered power from the target may be greatly enhanced by properly choosing the aperture distribution.
在多次散射理论中，随机粗糙面的总散射功率不仅与单次散射波有关，而且还取决于多次散射波。
For the multiple scattering theory, the total scattered power from a random rough surface is contributed to, not only by single scattered waves, but also by those multiple scattered waves.
为了找到答案，他们用加州斯坦福同步辐射光源生成的高功率X射线，这次测量水如何散射从不同的角度照进的光线。
To find out, they turned to thehigh-power X-rays generated at the Stanford Synchrotron Radiation Lightsourcein California, this time measuring how water scatters rays arrivingfrom various angles.
受激拉曼散射是大功率光纤激光器性能提升的主要限制之一。
Stimulated Raman scattering is one of the main restriction for the improvement of high power fiber laser.
脉冲线电流源的辐射问题是研究高功率微波辐射、传播和散射问题的基础。
The electromagnetic pulse radiation problem is the starting point for high power microwaves radiation, propagation and scattering.
利用非线性散射函数可以完成对大信号射频功率器件的精确建模。
The nonlinear scattering function can build accurate model of RF power components under large signal.
提出了阈值检测、降噪处理和功率谱估计三种分析和处理水中气泡激光散射信号的方法。
Three methods for analyzing and processing the laser scattering signal of bubbles in water, the threshold detection, noise elimination processing and power spectral estimation, are put forward.
采用受激布里渊散射(SBS)噪声起源理论模型，数值模拟了透镜焦距对SBS光限幅功率特性和能量特性的影响。
Adopting noise initiation mode of stimulated Brillion scattering (SBS), the influence of focal length on optical limiting power and energy is numerically simulated.
随着激光器的能量密度和功率进一步提高，用以传输激光的大型光学元件中的横向受激布里渊散射现象越来越受到人们关注。
Transverse stimulated Brillouin scattering (TSBS) in large optics has been paid more and more attention in recent years with the gradual improvement of laser's energy density and power.
计算了受激电子喇曼散射的功率增益系数并测量了红外输出随染料激光频率调谐的变化，其结果符合较好；
The calculation for the power gain factors and the measurment for the infrared output as a function of a dye laser tunning are made and both results are in good agreement.
提出了极化散射矩阵总功率、极化熵、相似性参数的组合表达式。
In this paper, a combined expression is introduced from the span of a scattering matrix, polarimetric entropy and similarity parameters.
研究表明，无序层中的杂质散射和粗糙界面散射都能抑制系统的微分电导、平均电流和散粒噪声功率。
It is shown that the differential conductance, average current and shot noise power are suppressed by the impurities and rough interface scattering.
在毫米波段计算了雨区的后向散射引起的雨杂波功率密度随频率及降雨率的变化。
In the millimeter band, the variations are found of the power density of the rain clutter induced by back scattering with frequency and rain rate.
受激布里渊散射作为相位共轭的一种手段可以在保证光束质量的前提下有效地提高固体激光的功率。
As a means of phase conjugation. SBS (stimulated Brillouin scattering) can increase the power of solid lasers with high beam quality.
在单模光纤中，输入的激光功率大于阈值时，出现放大的反斯托克斯·拉曼背向自发散射现象。
Amplified anti-Stokes Raman spontaneous backscattering phenomena has been observed in single mode fiber, during input laser power is large than threshold power.
对采集到的信号做功率谱估计后，结合测量时的雷达参数和环境参数，就可以计算出被测目标的散射系数。
After the power spectrum estimation for the collected signals, the measured objectives 'scattering coefficient can be calculated out combined to the radar parameters and environmental parameters.
当进一步增加拉曼放大器的抽运功率，出现了前向级联的多阶受激布里渊散射现象，拉曼放大器的增益下降，被放大的信号功率转换为受激布里渊散射，噪声变大。
The forward cascaded multiple stimulated Brillouin emerged when the pump power is increased further, and the amplified signal power is translated into SBS with stronger noise when the gain decreased.
此外，其它光信号，例如OSC信号和反向散射光信号，可同样具有非常大的光功率级。
Furthermore, other optical signals, such as OSC signals and back-scattered optical signals, can also have significant optical power levels.
高功率单频光纤拉曼放大器(SF -FRA)的输出功率往往会由于受激布里渊散射(SBS)的出现而受到限制。
High power operation of single-frequency Raman fiber amplifier (SF-FRA) is usually limited by the generating of stimulated Brillouin scattering (SBS).
高功率固体激光装置中散射点的影响不可忽略，在实际的装置中已经看到由散射点引起的破坏。
The effect of obscuration can't be ignored in the high-power solid laser equipment, and we have found the destruct of obscuration to the actual equipment.
受激转动拉曼散射过程中，入射光束功率密度微弱变化所产生的散射光能量变化剧烈。
During the process of stimulated rotational Raman scattering, the energy loss will vary dramatically with even minor changes in the intensity of input laser pulse.
受激转动拉曼散射过程中，入射光束功率密度微弱变化所产生的散射光能量变化剧烈。
During the process of stimulated rotational Raman scattering, the energy loss will vary dramatically with even minor changes in the intensity of input laser pulse.
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