spectrum shape

Assuming that the target RCS fluctuation characteristic is the Gaussian spectrum characteristic, this paper simulates the target RCS fluctuation characteristic by white Gaussian noise passing through a lowpass filter with Gaussian spectrum shape.

在假定目标RCS起伏为高斯形状频谱特性的前提下，将高斯白噪声通过一个高斯谱特性的低通滤波器来模拟目标RCS起伏特性。

In this pager, the self-phase modulation effect in gain saturated semiconductor optical amplifier and its affect on the shape, phase and spectrum of transmission pulse are analyzed.

本文分析了半导体激光放大器处于增益饱和状态下的自相位调制（SPM）效应，以及SPM效应对传输脉冲波形、相位及频谱的影响。

According to the shape of the estimated spectrum we infer a log normal distribution.

根据估计出的谱形态为对数常态分配.

Two parameters, block spectrum intensity Seq and spectrum shape factor a, which describe the characteristics of the loading block spectrum are defined, and the relationship between the parameters and fatigue crack propagation behaviours is investigated.

定义了疲劳载荷谱的两个特征参数：块谱强度和形状因子，由此去描述载荷谱的特征，并研究了特征参数和疲劳裂纹扩展之间的关系。

Two methods were used to shape the spectrum of laser pulse.

采用腔内和腔外两种方法对激光脉冲进行光谱整形。

Through measures such as surface contact angle method and infra-red spectrum, the effects of particle size, particle surface activity, particle shape, etc were studied.

通过对改性产品接触角测量和红外光谱分析，探讨了颗粒粒度、表面性质、晶体结构对填充橡胶性能的影响。

Using X-ray diffraction, energy spectrum analysis and scanning electron microscope, TiO2 crystallite, shape and size on ceramic surface are tested.

利用x射线衍射仪、能谱分析和电子扫描电镜对瓷砖釉面表面的二氧化钛晶型、形貌、颗粒大小进行了测试。

By the aid of travel time and waveform data of trapped waves, and body waves, and using spectrum analysis and ray-tracing method can further determine the 3-D geometric shape and physical parameters of faults.

借助于围陷波和体波的走时及波形资料，利用谱分析和射线追踪方法可进一步确定断层的三维几何形态和物性参数。