时频分析 time-frequency analysis英语短句 例句大全

时频分析,time-frequency analysis

1)time-frequency analysis时频分析

parison betweentime-frequency analysis methods of yarn signal;纱线信号时频分析方法比较

2.Dynamic signals"time-frequency analysis of resistance spot welding process;电阻点焊过程动态信号的时频分析

3.Study ontime-frequency analysis for acousto-ultrasonic testing signal in thin plates;薄板声——超声检测信号的时频分析研究

英文短句/例句

1.Parameters Estimation and Time-frequency Analysis of Chirp Signal;线性调频信号的参量估计与时频分析

2.Time-Frequency Analysis of Nonlinear Frequency Modulation Signal and Its Application;非线性调频信号的时频分析及其应用

3.Time-Frequency Analysis on The High Frequency Magnetotelluric Sounding DataEH4高频大地电磁测深数据的时频分析

4.Time-frequency analysis on Wigner-Ville distribution of seismic signal based on time-frequency rearrangement基于时频重排的地震信号Wigner-Ville分布时频分析

5.Method Study of Adaptive Time-frequency Analysis and Time-frequency Attributes Extraction;自适应时频分析及其时频属性提取方法研究

6.Research on the Theory of Multi-Resolutoin Time-Frequency Analysis and the System of Multi-Function Time-Frequency Analyzer多分辨时频分析理论与多功能时频分析系统的研究

7.ISAR Instantaneous Imaging Algorithm Based on Time-freuqency Analysis基于时频分析的ISAR瞬时成像算法

8.Detection and Characteristic Parameters Estimation of Frequency-Hopping Signal Using Time-Frequency Analysis;基于时频分析的跳频信号检测与特征提取

9.System Design of Track FSK Signal Based on Time-Frequency Distribution;基于时频分析技术轨道移频信号接收系统设计

10.Blind Parameter Estimation of FH Signals Based on Time-Frequency Analysis基于时频分析的跳频信号的参数盲估计方法

11.Studies on Time-Frequency Analysis and Target Recognition with Polarimetric Radar;极化雷达时频分析与目标识别的研究

12.Hilbert-Huang Transform and Wavelet Methods for Time-frequency Analysis;时频分析的Hilbert-Huang变换及小波方法

13.Research on ISAR Motion Compensation Methods Based on Time-Frequency Analysis;基于时频分析的ISAR运动补偿方法研究

14.Theroretical Study and Application of Time-Frequency Analysis Method Based on Empirical Mode Decomposition;EMD时频分析方法的理论研究与应用

15.real-time digital spectral analyzer实时数字频谱分析仪

16.real-time digital spectrum analyzer实时数字频谱分析器

17.real-time all-digital spectrum analyzer实时全数字频谱分析仪

18.Elastoplastic TFRS and TFRS Analysis Method for Structural Dynamic Analysis;弹塑性时频反应谱和动力分析的时频反应谱法

相关短句/例句

time frequency analysis时频分析

1.Hilbert-Huang transform andtime frequency analysis of magnetotelluric signalHilbert-Huang变换与大地电磁信号的时频分析

2.Then we process the real data in the method of thetime frequency analysis.时频分析是近年发展起来的一个重要的、新的数学分支 ,目前已成为国际上极为活跃的研究领域。

3.This can satisfy welltime frequency analysis of multi graduation characteristic signal.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。

3)Time-frequency distribution时频分析

1.The development of time-frequency distribution based EEG signal analysis and processing;基于时频分析的EEG信号分析处理方法研究进展

2.Time-frequency distribution application research on rolling bearing fault diagnosis时频分析在轴承故障诊断中的应用研究

4)time and frequency analysis时频分析

1.The study oftime and frequency analysis,feature extraction,source locating and denoising of the original signal is described in detail.在综合描述复合材料声发射信号特征和小波变换基本原理的基础上,本文总结了小波变换在声发射信号分析中的研究进展,并重点描述小波变换对复合材料破坏过程中声发射信号的特征提取、时频分析和信号除噪及声源定位方面的研究,提出了小波变换在声发射信号分析应用中需要进一步解决的问题。

5)time-frequency时频分析

6)time-frequency analysis时-频分析

1.9202 working face across the upper remained coal pillar in Sanhejian Mine,the character of signals caused by different hypocenters had been summarized and abstracted by using thetime-frequency analysis method.以三河尖矿9202采面过上覆煤柱高应力区为背景,通过微震信号的时-频分析技术,总结提炼了不同微震信号的重要波形特征。

2.Time-frequency analysis was used to assess changes in the dominant frequency within ECG recorded in dogs during trials of 10-30 s of VF.在19只犬中建立正交心电图和心脏电除颤系统;诱发心室颤动持续10~30 s;使用时-频分析法分析心室颤动时频率的时频变化。

延伸阅读

动态电路复频域分析动态电路复频域分析complex frequency-domain analysis of dynamic circuitsdongto}dlonlu卞uP一ny日fenx{动态电路复频域分析(eomplex frequeney-domain analysisof dynamie eireuits)用拉普拉斯变换方法分析动态电路。作为数学工具，拉普拉斯变换是一种积分变换，常用以求线性常系数微分方程和偏微分方程的解。线性非时变集总参数动态电路是用常系数线性常微分方程描述的，线性非时变分布参数电路是由相应的偏微分方程描述的。因而，对于这些电路可借助拉普拉斯变换方法进行分析。拉普拉斯变换的定义拉普拉斯变换方法简称拉氏变换方法。拉氏变换可分为单边拉氏变换和双边拉氏变换。此处只介绍单边拉氏变换的定义。设时间t的函数f(t)，当t。。时，上式的积分收敛，则f(t)的拉氏变换存在。使以上关系成立的最小的。。值称为收敛坐标。F(s)也称为f(约的象函数，而f(t)称为F(，)的原函数。给定一原函数f(t)，可由定义式求其象函数;反之，由一象函数F(:)可按下式求其原函数f(t)、一二(5)〕一、(才)一瑞{:‘:二F‘了)一d‘，·>一根据拉氏变换的定义式，可以求出不同的原函数f(t)的象函数F(s)。许多数学手册上都载有f(t)和F(、)对应关系的表以供查阅。表中所给出的是常用函数的拉氏变换关系。 常用函数的拉氏变换表┌────┬──────────────┬───┬───────┐│f(t)│F(s)│…f(t)│F(s) │├────┼──────────────┼───┼───────┤│u(t)│ 一│……冬│ 1││e一以│1/s │ │。。/(52+a，8)││Cos田ot │1/(s+a)l│ │ n!/s+， │││s/(52+。8) │ │ │└────┴──────────────┴───┴───────┘拉普拉斯变换的一些墓本性质在利用拉氏变换方法分析动态电路时，借助拉氏变换的一些性质可使问题简化。其主要性质有:若丫「fl(t)〕~Fl(、)、丫[f:(t)]一尸:(s)、犷[f(t)]=尸(s)，则(1)线性:对任何常数kl、kZ有牙[klf:(t)+k:九(t)]一k，F，(s)+kZF:(s)(2)对t微分厂、「df(约门”，、，，。、之之}，-一下下一l一Sr气百夕一j、UZ ‘a不山(3)对t积分、「{1_、(·)d·」一F(·)/·十f一’(。，/·式中f一，(0)一(4)延时:f(约d:t。是正常数，有即f卜设g「f(t一t。