instantaneous frequency

The relationship between wavelet ridge and instantaneous frequency is analyzed and a new method of the mechanical characteristic test of the wiper motor based on wavelet ridge algorithm is proposed.

分析了小波脊线与信号瞬时频率的关系，提出了基于小波脊线的刮水器电动机机械特性测试新方法。

It is tried that the instantaneous amplitude, instantaneous phase and instantaneous frequency of seismic information are used for calculating the thickness of the coal seam based on the seismic attribution of various rock formations and the developed characteristics of the coal seam in this area.

根据不同岩层的地震属性及本区煤层发育特点，尝试了利用地震瞬时振幅、瞬时相位和瞬时频率信息计算煤层厚度。

Application of Wavelet Transform and Phase Modeling to Estimation of Instantaneous Frequency

小波变换与相位建模在瞬时频率估计中的应用

The principles and advantages of instantaneous frequency in wavelet domain are briefly discussed.

小波变换域瞬时频率分析方法是地震资料分析的重要工具.

The instantaneous frequency estimation problems of single-component LFM signal are studied.

研究了单分量LFM信号的瞬时频率估计问题。

Instantaneous Frequency Estimation of the Surface Myoelectric Signal Wigner-Ville Distribution Based Technique

基于互Wigner-Ville分布的表面肌电信号瞬时频率估计

A method based on instantaneous frequency fitting is proposed for the 3rd order PPS parameter estimation.

提出了基于瞬时频率拟合的三阶PPS信号参数估计估计方法。

Just in such a case, Test Center of Chongqing University put forward an order-tracking technique on the basis of Instantaneous Frequency Estimation ( IFE), and for the first time implemented order tracking without key-phasor.

正是在这种情况下，重庆大学测试中心提出了基于瞬时频率估计（Instantaneous Frequency Estimation&IFE）的阶比跟踪技术。

The varying frequency is a natural phenomenon in the actual life that is often felt by people. The essential aim of the HHT is to describe this phenomenon and uncover its law, that is, to look for the instantaneous frequency of a signal.

变化的频率是现实生活中人们经常直观感觉到的现象，HHT的根本目的就是描述和揭示这种时变频率现象及其规律，即求信号的瞬时频率。

In modern electronic warfare, instantaneous frequency measurement ( IFM) is a crucial technology.

在现代化的电子战情况下，瞬时频率测量（IFM）是一项十分关键的技术。

According to Hilbert-Huang transform, order analysis of the vibration signal based on the instantaneous frequency estimate ( IFE) was proposed, which got rotating speed directly from IFE.

根据希尔伯特黄变换（Hilbert Huang Transform），提出了基于瞬时频率估计的内燃机信号阶比分析方法，直接从振动信号的瞬时频率估计得到转速信号。

Ultrasonic signal process method based on instantaneous frequency

基于瞬时频率的超声信号数字处理方法

Based on the local characteristics of signals, a local wave method ( LWM) can be employed to obtain the instantaneous frequency of signals and the Hilbert time frequency spectrum composed of an energy time frequency three dimensional distribution.

局域波法是基于信号局部特征，通过该方法可得到信号的瞬时频率和构成能量-时间-频率三维分布的Hilbert时频谱。

A kind of speech parameter called instantaneous frequency estimation ( IFE) are extracted by the weighted estimation both on amplitude and frequency to represent the accurate frequency structure of speech.

通过两者的加权估计得到了一种语音特征参数&瞬时频率估计（IFE），该参数可以描绘语音的精细频率结构。

Instantaneous attributes including amplitude, instantaneous frequency, bandwidth, dominant frequency and decay rate are used to analyze thin interbeds.

利用地震瞬时谱的属性（包括瞬时振幅、瞬时频率、瞬时带宽、瞬时主频及瞬时品质因数等）进行地震薄互层分析。