波数

点电源二维电场问题中付氏反变换的波数k的选择

Selection of wave number k in Fourier inverse transformation for point source and 2-D electric field problems

双站合成孔径雷达成像波数域解决方案一种改进的极坐标波数域圆迹SAR三维成像算法

Wave Number Domain Solution for Image Formation of Bistatic SAR ; An Improved CSAR 3-D Imaging Algorithm in Polar Wavenumber Domain

声波、光波或无线电波等都有特定的频率，或者说是每秒的波数。

Sound waves , light waves , and radio waves have a certain frequency , or number of waves per second .

基于等效斜视距离模型的高分辨率星载SAR波数域成像算法

Equivalent-Squint-Range-Model Based Wavenumber Domain Focusing Algorithm for High Resolution Spaceborne SAR

星载SAR等效斜视波数域算法的实现方法

An Implementation Method of Equivalent Squint Wavenumber Domain Algorithm for Spaceborne SAR

一种改进的极坐标波数域圆迹SAR三维成像算法

An Improved CSAR 3-D Imaging Algorithm in Polar Wavenumber Domain

适于大斜视角的星载双基地SAR波数域成像算法

A Wavenumber Domain Algorithm for Spaceborne Bistatic SAR Imaging with Large Squint Angle

基于波数域聚焦算法的低频UWBSAR成像

Imaging of Low Frequency UWB SAR Based on Wave-number Focusing Algorithm

一种改进的斜视SAR运动补偿波数域算法

A Kind of Method of Extended Wavenumber Domain Algorithm for Squint SAR Motion Compensation

在IR谱图中，随周期数增加，振动频率向低波数移动。

The vibrational frequency in IR spectra shifts toward lower frequency with increasing periodic number .

该滤波器的振幅特性与波数k的n次幂成正比。

The amplitude characteristic of this filter is directly proportional to k ~ n ( k is wavenumber ) .

拉曼光谱表明，阳极上得到的碳膜的G峰都向低波数方向发生偏移。

Raman studies indicate that the G peak for carbon films grew on the anode shift to lower wavenumber .

讨论了SAR波数域成像算法，并与RD算法做了比较和分析。

ω? k algorithm is discussed , and compared with RD algorithm .

基于该距离模型提出一种星载双基地SAR波数域成像算法，能在大斜视角、高分辨率情况下精确成像。

A wavenumber domain algorithm for spaceborne bistatic SAR imaging is then proposed based on that range model .

FT光谱学中波数取值范围对复原谱影响的分析

Analysis of the reconstructed spectrum affected by the region of wavenumber in FT spectroscopy

我们根据SH地区的磁场特点设计了N1滤波器，其波数响应为使用效果比较好。

Our N_1 filter , which is better used , was designed according to the magnetic field characteristics in SH area ;

结果：头胸导联所记录到的Q波数及Q波幅度均显著低于常规导联心电图。

Results : Q wave amplitude and Q wave numbers recorded in Head-Chest leads were lower than those recorded by Routine lead ECG .

这个局部裂步Fourier传播算子是由相空间（空间-波数）-频率域的相移算子和空间-频率域的窗口时移算子两部分组成。

The local split-step Fourier propagator consists of a phase shift operator in phase-space-frequency domain and a windowed time shift operator in space-frequency domain .

在频率空间域实现τP变换，优于时间空间域或频率波数域两类传统的τp变换方法。

To perform τ - p transform in frequency - space domain is believed to have more advantages over the two conventional methods of doing it in time-space domain or in wavenumber domain .

任意波数的二维Helmholtz方程外边值问题的Galerkin边界元法

Galerkin Boundary Element Method for Exterior Problems of the 2-D Helmholtz Equation for All Wavenumbers

首次获得了五角形波导前四个TM模和TE模的截止波数。

The cutoff wave number of the first four TM mode and TE mode of the pentagon waveguide are obtained .

以波数域成像算法为例，推导了SAR信号仿真算法与SAR成像算法的互逆关系。

By taking wavenumber domain imaging algorithm as an example , the reversible relationship between SAR signal simulating algorithm and SAR imaging algorithm is derived .

交流Josephson效应中的有限波数影响

Finite wavenumber effect on AC Josephson current

串扰引起的光功率恶化主要取决于复用波数M，而与输入光纤数N关系不大。

On the other hand , the power penalty will depends less on the number of input fiber N compared with the multiplexing wavelength number M for the ideal performance of switch .

Fourier变换红外谱在波数954cm-1处的特征吸收峰表明吸附剂中形成了SiOTi键。

In the Fourier transform infrared spectra , the peak of 954 cm - 1 is the characteristic of Si O Ti bond of the Ti-doped adsorbent .

改进的CS算法和等效斜视的波数域算法是适用于大距离徙动高分辨率星载SAR成像的两种算法。

The improved CS algorithm and the equivalent-squint wavenumber domain algorithm are two imaging algorithms applied to high resolution spaceborne SAR with large range cell migration .

研究二维目标声波成像的新方法·首先根据Green函数理论导出一个关于波数扰动函数和波场的积分方程组；

A new way of acoustic wave imaging was investigated . By using the Green function theory a system of integral equations , which linked wave number perturbation function with wave field , was firstly deduced .

本文采用简单延时相加方法，并用不同频率下的波数k为上海地震台阵计算并绘制二维与三维的波数响应图。

The wave-number response figures with two-dimension and three-dimension are computed and drawn for Shanghai Seismic Array from wave-numbers ( k ) with different frequencies by using the method of simple delay-beam .

自吸率κv随暗波数s下降的陡度还随高能电子的能谱指数δ的增加和其低能截止能量E0的下降而迅速增加；

This decrease becomes more quickly as increasing energy spectral index 5 and decreasing low-energy cutoff E0 of energetic electrons ;

波数域算法（简称ω-k算法）可以很好地解决距离向和方位向的耦合问题，从而有能力处理宽波束SAR数据。

The wavenumber domain algorithm (ω - k algorithm for short ) has the ability to process wide-beam SAR data because it has the ability to handle the range-azimuth coupling correctly .