frequency analysis的例句大全

This method can be generalized to multi dimensional time frequency analysis of3D seismic data.

这种方法为三维地震资料进行多维时频分析奠定基础。

Frequency analysis of the vibration signals in the aluminum spot welding

铝合金点焊过程振动信号频谱分析

Red Tide Frequency Analysis

赤潮发生的频率分析红色（英文）38℃的红色

The Research of Cross-component Suppression of Multi-component Signals Using Time Frequency Analysis

多分量信号时频分析交叉项抑制研究

Research on Time Frequency Analysis of Impact echo Signal of Concrete Structure

混凝土结构脉冲回波信号的时频分析研究

Hough transform is a usual method for the image edge detection. It has been used in the underwater acoustic field for estimation combined with time-frequency analysis, exemplified by estimate the frequency slope of the LFM signal with wigner-Hough transform.

Hough变换是一种用于边缘检测的图像处理手段，在水声信号处理中已被用来与时频分析手段联合起来对信号进行估计，例如Wigner-Hough变换利用对直线的Hough变换来估计线性调频信号斜率等。

Comparison has been done about the sample selecting of the partial duration series method and the annual maximum series method by using the statistical simulations. The effect of different threshold values on the frequency analysis results has been studied.

本文运用统计试验方法对部分历时序列法与年最大值统计法两种不同取样方法的比较、不同阈值对频率分析结果的影响等方面进行了研究。

Red Tide Frequency Analysis and Forecast

赤潮发生的频率分析和预报

Time and frequency analysis on the separated signals is then conducted using Matlab toolboxes for time and frequency domain processing to extract diagnostic information, through which the expected signal is recognized, and characteristics of interference signals extracted.

然后使用Matlab中的时频工具箱，根据分离出的信号进行时频分析，提取信号中所包含的特征信息，达到能够识别出期望信号，并能提取其余干扰信号的特征。

Joint time frequency analysis method is a powerful tool for study of this kind of signal.

联合时频分析的方法是研究这类信号的有力工具。

The processing result notes that the method of time frequency analysis may improve stability and liability of extracting Rayleigh wave velocity.

处理结果表明，应用时频分析方法可以提高瑞雷波速提取的稳定性和可靠性。

Time frequency analysis method is used to analyze the time domain and frequency domain of seismic waves at the same time according to the principle of wavelet transformation.

时频分析方法是利用小波变换原理，从地震波的时间域和频率域同时对其作出分析。

For the feature of fault transient traveling wave, whether it is with a simple frequency analysis or with a simple time-domain analysis can not accurately describe the transient traveling wave which changes non-smoothly.

针对故障暂态行波特性，无论是用单纯的频率分析法还是用单纯的时域分析法都不能准确描述暂态行波这类非平稳变化信号。

The stormy calculation common used in building rainwater discharge design is derived from the frequency analysis.

建筑给排水设计中常常采用的暴雨强度公式即来自频率分析法。

A Wavelet Transform Time Frequency Analysis of the Third and Fourth Heart Sound of Old People

老年人第三第四心音信号小波变换时频分析研究

The Method of Frequency Analysis of Cold Store's Temperature Fluctuation And its Experimental Study

库温波动的频域分析法及实验研究

Frequency Analysis of Transient Current Controlling for GTO Thyristor Chopper

瞬时值控制GTO斩波器的频率分析

Approaching how to distinguish outlier from different parameter estimation methods. And used this standard ( large than EX+ 3 x σ X) to estimate the design sub stage maximum tidal levels using the frequency analysis.

探讨了不同参数估计方法下如何判别特大值，并用得到的判别标准（大于EX+3×σX）对修正后的分期最高潮位序列进行频率分析确定了分期设计最高潮位。

The article brings forward the method of detection noise removing, based on the theory of signal detection and signal detecting on the time frequency chart gotten by time frequency analysis tools.

基于信号的检测理论，在利用时频分析工具得到的时频图上进行信号检测，提出了检测去噪法。

Firstly, a time-frequency plane is gained by time-frequency analysis, and then time displacement and frequency information of each component are determined.

首先通过时频分析得到心音信号的时频分析图，确定心音在时间、频率平面内各成分对应的区域信息。