片语

amplitude density spectrum[电子]

multi-amplitude spread spectrum technology多幅扩频技术

amplitude e spectrum shaping振幅谱整形

amplitude spectrum integral振幅谱积分

amplitude sound spectrum声幅度谱

amplitude e spectrum振幅谱

FFT amplitude spectrumFFT幅值谱

amplitude frequency spectrum analysis幅频分析

英汉例句

• it is important that signals be reconstructed by making use of amplitude spectrum and partial time-domain sample.

  利用幅度谐与部分时域采样值来重构信号是极为重要的。

• the radially averaged log amplitude spectrum of potential field can be modeled by lines with different slopes, which are the depths of the corresponding equivalent source layers.

  位场信号的径向平均对数振幅谱可以由多条斜率不同的直线段拟合，直线的斜率即为相应的等效层的深度。

• starting from the layer absorbing media model, the amplitude spectrum is calculated theoretically.

  从视等厚层状吸收介质模型入手，理论计算了地震反射波的振幅谱。

• the signal「s amplitude spectrum reveals that there are two main frequency, the higher is the probe signal」s dominant frequency and the lower is the testing plane「s free vibration frequency.

  频谱分析表明测试信号中含有两个主频，分别对应发射探头的发射主频与测试面自振频率（采用ansys有限元程序作半空间体模态分析加以验证）；

• in frequency region: the influence of thin film parameters on fourier amplitude spectrum and phase spectrum were discussed as well.

  在频率域：讨论了薄膜参量对激光感生电压信号的傅立叶变换幅值谱和相位谱的影响。

• finally, the effect of striking force and striking point at string on the amplitude spectrum are discussed.

  从理论和谱分析实验研究了钢琴的击弦点及击弦力度对钢琴幅度谱的影响。

• the optimal inversion interval can be determined by doing an amplitude spectrum analysis of △t anomaly.

  可通过对△t异常作报幅谱分析确定最佳反演点距；

• phase-matched filter is applied to extract phase of fundamental surface wave, and then time-variable filter is used to correct amplitude spectrum in order to isolate fundamental mode signs .

  使用相匹配滤波技术提取基阶面波振型的相位，然后再利用时变滤波进行振幅谱校正，以此分离出基阶振型面波信号。

• to detect the forged parts in a single image with copy-move attack, an autocorrelation detection method based on phase and amplitude spectrum of fft is proposed.

  针对一类单幅图像的复制遮盖篡改，提出一种基于快速傅立叶变换相位和幅度的自相关检测算法对篡改部位进行检测。

• this paper studied the effect of striking point and dynamics at string on the amplitude spectrum of a piano from theory and spectrum analysis experiment.

  从理论和谱分析实验研究了钢琴的击弦点及击弦力度对钢琴幅度谱的影响。

• this paper mainly studies the effect of the 7th and 9th harmonics of piano amplitude spectrum on piano tone quality.

  主要研究了钢琴声音幅度谱中的第七、第九次谐波对钢琴音质的影响。

• the paper expounds a way to get stress amplitude spectrum of main girders of overhead traveling crane through computer simulation combining virtual prototype technology and computer random simulation.

  本文将虚拟样机技术与计算机随机模拟方法结合，探讨了通过计算机仿真的方法获得桥式起重机主梁应力幅谱的基本途径。

• in dfrnt domain, high amplitude spectrum (has) and low amplitude spectrum (las) components carry different information of original images.

  在离散分数随机变换域，高、低振幅部分携带了原始图像的不同信息。

• used fourier transforming the nuclear logs, its vertical resolution can be achieved from analyzing the changes of amplitude spectrum slope.

  对核测井曲线进行付氏变换，其纵向分辨率可以从分析振幅谱斜率变化中获得。

• then it studied the pulse waveform distortion from two aspects of the amplitude spectrum and phase spectrum.

  随后从脉沖信号的幅度谱和相位谱两个方面研究了脉沖波形失真情况。

• amplitude spectrum describes the frequency feature of gait image and reflective symmetry implicitly represents the habit with which person」s leg and body swings.

  幅值谱反映了人体步态的频域特征，而反射对称隐含表示了行走时人体的胳膊和身体的摆动习惯。

• the main contributions of this thesis are summarized as follows:1) proposed a method using amplitude spectrum and reflective symmetry of key frames as gait features to recognize test sequence.

  本文的主要贡献如下：1）提出了幅值谱和反射对称作为关键帧特征的步态识别算法。

• this paper describes the calculation method and process of stress amplitude and stress amplitude spectrum to evaluate the safety life time of steel structure for tower crane.

  本文介绍了塔式起重机钢结构安全寿命评估中的应力幅及应力幅谱系数的计算方法和过程。

• the wavelets with the same amplitude spectrum and different phase spectrums are correspondent to different maximum-and minimum-phase components respectively.

  相同振幅谱、不同相位谱的地震子波分别对应不同的最大和最小相位分量。

• the fourier amplitude spectrum used in a seismological model can be expressed as a product of source spectrum, propagation path factor and site effect in frequency domain.

  在频域内，场地的地震动傅立叶幅值谱，可以表示为震源谱、传播路径影响因子和场地效应的乘积。

• if the time window is too short, the amplitude spectrum will be in convolution with transform window function and lose local characteristic of frequency.

  如果所选时窗过短，振幅谱会与变换窗函数褶积，失去频率的局部化特征，而且过短的时窗会使子波的旁瓣呈现为单一反射的假象。

• vibration signals of defect rolling bearings are non-gauss, non-linear and non-stationary. fault characteristic frequencies can not be found via amplitude spectrum analysis because of modulation.

  滚动轴承故障信号是非高斯、非线性、非平稳信号，由于调制性，使用幅值谱分析方法无法找到轴承故障频率。

• a time history is synthesized from this amplitude spectrum and a random phase spectrum, combined with an envelope function.

  据此幅值谱和一个随机相位谱，并与一个时程包络函数结合，合成一个子震时程。