Due to high temporal and frequency resolution and high energy focus, the accuracy of fault signal feature extraction is greatly improved by WVD.
WVD很高的能量聚集性和很好的时频分辨率，极大地提高了故障信号特征提取的准确度。
This paper goes on the rolling bearing as the research object, researching the new theories and methods of bearing fault signal feature extraction.
本文以滚动轴承为研究对象，应用新理论，提出轴承故障信号特征提取的新方法。
This paper verified the effectiveness of the fault diagnosis method based on 2d-hmm for centrifugal pump, by applying several signal feature extraction methods combining 2d-hmm model.
在应用本文所采用的几种信号特征提取方法的基础上，结合2d -HMM模型，验证了基于2d - H MM的离心泵故障诊断方法的有效性。
The digital receiver can avoid above problems effectively. It can keep all characters of signals and realize the signal feature extraction, separation and recognition with digital signal processors.
而数字接收机则可以有效避免这类问题，它可以保留信号的全部信息，采用数字信号处理器对输入信号进行特征提取，分选和识别。
This neural network pattern recognition can be applied to feature extraction, clustering analysis, edge detection, signal enhancement and noise suppression, data compression, such as various links.
这样神经网络可应用于模式识别的特征提取、聚类分析、边缘检测、信号增强以及噪声抑制、数据压缩等各个环节。
Theoretic description and application of the expression of object features, and formation and extraction of feature signal are presented in this paper.
文章给出了对象模式特征的表述、特征信号的生成与提取的理论描述和实现方法。
In the view of feature signal extraction, the local wave time-frequency analysis and information entropy were used to deal with fault diagnosis.
从特征信号提取的角度出发，采用局域波时频分析和信息熵结合的方法进行往复式压缩机故障诊断。
Finally after the study on the emitter signal detection and feature extraction technology, the system model on complex emitter reconnaissance and processing technology was given.
最后结合辐射源信号检测和特征提取技术的研究，建立了复杂辐射源信号侦察处理技术系统模型。
The feature extraction of partial discharge signal of transformer is the front research project in online monitoring and diagnosing high voltage insulation failure.
大型电力变压器局部放电信号的特征提取是电气设备绝缘在线监测及故障诊断技术领域的前沿研究课题。
The signal modulation of velocity deception jamming is complex, and it is hard to complement anti jamming using the statistical feature extraction method.
速度欺骗干扰因信号调制较为复杂，难以用统计特征提取方法来实现抗干扰。
In this paper we introduced the speech signal feature parameters, the speech signal feature parameters selection, and introduced short-term energy, short-term average range extraction.
本文对语音信号特征参数、语音信号特征参数的选择进行了介绍，并介绍了语音信号的短时能量、短时平均幅度的提取。
By studying the principle of hearing system in identification of sound signal, a method of feature extraction for passive sonar target based on critical band spectrum energy is proposed.
利用被动声纳目标辐射噪声特征主要集中在低频部分的特点，结合听觉系统识别声音信号的原理，提出了一种被动声纳目标临界频带频谱能量的特征提取方法。
With a simulation experiment, the signal of tire burst is gained from the piezoelectric sensor. Then design a feature extraction circuit unit, also with the safety circuit.
由爆胎模拟实验得到了爆胎信号特征，由此提出了由爆胎特征提取电路、安全电路、逻辑判断电路、点火电路组成的控制器设计原理及压电供能的设计方法；
It is introduced in the feature extraction of the vibration signal induced from reciprocating machinery valve, and t.
提出了一种自适应提取往复机械振动信号冲击特征的信号处理方法。
The digital signal processing techniques were used on the DSSS signal simulation and verification feature extraction. And the performance of each detection and advantages and disadvantages were given.
采用上述数字信号处理技术分别对DSSS信号进行特征提取的仿真和验证，并给出了每种检测技术的性能及优缺点。
Fault diagnosis includes data collection, signal analysis, feature extraction and decision making.
故障诊断包括信号采集、信号分析、特征提取、诊断决策等环节。
A feature extraction method of remnant material based on aerospace relay particle impact noise detection (PIND) experiment signal was presented.
提出了一种基于航天继电器微粒碰撞噪声检测(PIND)试验信号的多余物材料特征提起方法。
Signal processing and feature extraction of high-resolution radar echoes have received intensive attention in recent years.
高分辨雷达回波信号处理和特征提取技术受到广泛的关注。
This paper includes studying many feature extraction methods such as time-frequency method, multi-resolution analysis and correlation analysis to analyze the Micro-Doppler signal.
本论文主要研究采用多种特征提取方法对激光微多普勒信号进行时-频分析、多尺度分析和相关变换技术。
The feature extraction of ECG waveform is a kind of weak signal characteristic extraction aiming at one dimension ECG signal.
心电图波形特征提取是针对一维心电信号的弱信号特征提取。
A typical BCI system consists of several parts, such as signal acquisition, feature extraction, classification algorithm, command output and so on.
一个BCI系统是由信号采集、特征提取、分类算法、命令输出等单元组成。
The ultrasonic echoes of welding flaws for three types of pressure vessel are analyzed for feature extraction of signal processing using higher-order spectrum method.
针对焊接缺陷超声检测中信号处理的特征提取问题，应用高阶谱方法对三类压力容器焊接缺陷的超声回波信号进行了分析。
With a view to time_varying characteristic of the vibration signal measured on triplex reciprocating pump, an approach on the waveform feature extraction which reflects th...
针对三缸往复泵测量信号非平稳时变特点，研究了用小波消噪方法提取反映往复泵动力端状态的振动波形特征。
With a view to time_varying characteristic of the vibration signal measured on triplex reciprocating pump, an approach on the waveform feature extraction which reflects th...
针对三缸往复泵测量信号非平稳时变特点，研究了用小波消噪方法提取反映往复泵动力端状态的振动波形特征。
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