wave frequency的例句大全

Wave-function Solutions of High Frequency for Homogeneous Isotropic Circular Cylinder

均匀各向同性介质圆柱的高频波函数解

So the frequency domain equal energy wave door method with frequency modulated continuous triangular wave system signal is designed for estimating the distance along the axes and the radial velocity through two range wave doors scanning the main valve area of the echo while sliding.

故设计采用调频连续三角波体制信号，通过两个距离波门对主瓣回波区进行滑动扫描的频域等能量波门法估计轴心距离和径向速度。

The classical signal analysis method is Fourier transformation, whose essence is to decompose the signal wave into many sine waves, and which also can be seen as representation of time function in frequency domain.

傅里叶（Fourier）变换是经典的信号分析方法，其实质是：把波形分解成许多不同频率的正弦波之和，可看作是时间函数在频率域上的表示。

The descent trend of corner frequency of S wave is showed by the changes of the time before the earthquake ( M_S4.9), the azimuth of axes P of Yangjiang sequence show that the stress has begun to be identical in four months before this event.

S波拐角频率随时间的变化显示出MS4.9地震前有下降趋势；阳江序列P轴方位角的变化显示出震前4个月应力开始趋于一致。

In chapter five, the generation principle of THz-wave is introduced. The generation of THz-wave using Cerenkov-type difference frequency generation ( DFG) is also discussed theoretically.

第五章讨论了THz波的产生机理，并对切伦科夫型差频产生THz波进行了理论分析。

It is available to increase the number of cycles at the high frequency condition. Fourth, the guided wave velocity changes greatly with the different radius in unanchored bolt model.

在高频时，因波长较短，所以应大大地增加周期数。四、导波在自由锚杆中传播时，锚杆的半径不同，速度变化很大。

Clinical Application of High Frequency Electric Wave on Treatment for Cervical Diseases

高频电波刀在宫颈病变中的应用

Nurse on the Patient Being Operated by Cervix Circumcision With High Frequency Electric Wave Knife

行高频电波刀宫颈电环切除术患者的护理

Objective To evaluate the application of high frequency electric wave on the treatment of cervical diseases.

目的探讨高频电波刀子宫颈环形电切除操作在治疗宫颈病变中的应用。

Ionospheric loss of high frequency radio wave propagated in the ionospheric regions On amplitude and piecewise attenuation method of working current in ship ′ s magnetic treatment

电离层对高频电波吸收衰减的影响研究舰船磁性处理中的电流幅值与消磁电流分段衰减方法

The problem of implementation of IIR wavelet filter banks is solved, and IIR wavelet filter banks are applied to the vortex signal with noise to extract the fundamental wave and measure its frequency.

解决IIR小波滤波器的实现的问题，将其应用于含有噪声的涡街传感器信号的基波提取和频率测量。

Automatic Sampling of Multiple Frequency Signals in Surface Acoustic Wave Sensor Array

阵列声表面波传感器中频率信号的多道自动采集

Surface Acoustic Wave ( SAW) device responds to Changes in the mass on its Surface with a shift in frequency and is most frequently used in gas-phase sensing applications.

声表面波（SAW）器件的工作频率随基片表面上的负载质量变化而发生漂移，通常利用这一性质作气相分析与检测，已经有了若干用SAW延迟线器件制成的化学传感器。

The frequency selectivity relies on the interaction between periodic structure and electromagnetic wave, which behaves as the total reflection ( for patches) or transmission ( using apertures) in the neighborhood of the element resonant frequency.

FSS的频率选择性源于其周期性结构与电磁波的相互作用。当入射波的频率接近贴片或孔径的谐振频率点时，FSS表现出全反射或全透射特性。

As the control modes of DDS special chips are changeless, users are difficult to get frequency modulation wave what they need.

DDS专用芯片的控制方式固定不变，用户难以获得所需要的调频波；

By analysis of frequency spectrum based on MATLAB platform, wavelet method in the application of cutting out a section of inputting earthquake wave was presented.

通过基于MATLAB的地震波频谱分析，说明了小波分析方法在拟动力试西安建筑科技大学博士学位论文验中地震波截取方面的应用；

LFM Fuze launch the same range of frequency modulation continuous wave signal, and use the substract frequency of the emission signal and the return siganl to determine the distance between the shells with the target.

调频无线电引信发射调频等幅连续波信号，其发射信号的频率按调制信号规律变化，利用回波信号与发射信号的频率差确定弹与目标间的距离。

The study on single electron transportation induced by a high frequency surface acoustic wave ( SAW) has important influence on the base theory of Physics, further development of semiconductor devices and the research of metrology.

高频表面声波（SAW）驱动下的单电子输运问题的研究对物理学的基础理论、半导体器件的进一步发展和计量学的研究具有重要意义。

The surface acoustic wave ( SAW) sensor can transform the measured object into frequency output, viz a kind of digital signal output.

声表面波（SAW）传感器能将被测量转换成容易检测的频率信号，即一种准数字信号的输出。

Analysis and Comparison of Harmonic Wave Filter Method in Electric Power Frequency Communication

工频电力通信中谐波滤除方法的分析和比较