So long as can pick out theamplititude-modulated signal the envelope curve namely to be able torealize the demodulation.
只要能检出调幅信号的包络线即能实现解调。
The defect aggravation of out race and roller was detected through the trend analysis of later signals, which is basically identical with the real phenomena existing in gearbox. The wavelet envelope demodulation technique was proved to be effective in early fault diagnosis.
通过后期的振动数据跟踪分析，发现轧机轴承的外圈、滚动体相继出现损伤，并逐渐恶化，与停机开箱后结果基本吻合，进一步证实了小波包络解调技术的有效性。
Using Hilbert transform for demodulation process, the analytic signal obtained from the Hilbert transform of the band pass filtered vibration signal is used to extract the modulating signal component, the resulted signal envelope only contain the components that are related to gear fault frequencies.
通过对带通滤波后的信号进行基于Hilbert变换的解调，解调后的包络信号只包含与齿轮故障频率相关的分量。
Digital I/Q demodulation picks up the amplitude and phase of signal and remains all the information intact under the signal envelope.
数字正交检波技术能够较好地提取信号的幅度和相位参数，保留信号包络中的所有信息。
Secondly, all kinds of the vibration signal analysis method applied to fault diagnosis of rolling bearing, including time domain parameter diagnosis method, shock pulse method (SPM) and envelope demodulation method, are elaborated in detail and the characteristics of each method are compared.
其次详细阐述适用于滚动轴承故障诊断的各种振动信号分析方法，包括时域参数指标诊断法、冲击脉冲诊断法和包络解调法等，并对各种方法的特点进行了比较。
Compared with in vitro AM modulation modes, the demodulator adopts the diode peak envelope detector for demodulation.
相对于体外的AM调制方式，解调器采用二极管峰值包络检波进行解调。
Via the theoretical study and system simulation, we have accomplished the analysis of modulated wave envelope, phase properties, spectrum efficiency, power efficiency, and the implementation of Modulation & Demodulation System. And a number of key technologies of the CPM are studied.
结合理论和实验仿真结果，分析讨论了它们的已调波包络、相位特性、带宽利用率、功率利用率和调制解调系统的具体实现，并且研究了CPM调制的若干关键技术。
Compared with other modulation techniques, the Constant Envelope and Quasi-constant Envelope Modulation & Demodulation technologies are insensitive to the non-linear characteristic of the power amplifier because of the constant envelope.
恒定及准恒定包络调制技术与其它调制技术相比，由于包络恒定，对功放的非线性特性不敏感。
The modulation phenomenon of gear box vibration was studied, with the method of hilbert envelope demodulation; the fault feature of gear box was effectively extracted.
研究了齿轮箱振动调制现象，利用Hilbert包络解调方法有效的实现了齿轮箱故障特征提取。
Traditional way of AM signal demodulation is envelope detector or synchronism detector.
传统的AM调幅信号解调方法是同步检波和包络检波法。
GMSK is selected as demodulating method for its excellent frequency spectrum characteristics and permanent envelope property. The paper introduces in detail the GMSK demodulation principle, different demodulating algorithm and realizing principle.
由于GMSK良好的频谱特性以及恒包络特性，本系统选择GMSK为解调方式，并详细分析了GMSK解调的原理和不同的解调算法以及实现原理。
Application of the envelope order spectrum based on the generalized demodulation time-frequency analysis to the gear fault diagnosis
基于广义解调时频分析的包络阶次谱在齿轮故障诊断中的应用
A new current sink is designed, which is aimed at ASK envelope demodulation.
文章针对ASK包络解调电路，提出了新的泄流源的设计。
Based on combined Morlet wavelets, a comb-filter and envelope-demodulation method was presented.
提出一种基于Morlet组合小波的梳状滤波和包络检波方法。
Application of Combined Morlet Wavelets in Filter and Envelope-demodulation to Vibration Signal
Morlet组合小波在振动信号滤波和包络检波中的应用
All circuits of demodulating strong signal envelope are adopted in previous TV's video demodulation, synchronizing demodulations are widely used in video demodulation in the later integrated TV set.
早期电视机的视频检波均采用大信号包络检波电路，后来在集成化的电视机中，视频检波又都采用同步检波方式。
Which can be used to implement envelope demodulation and extract the envelope component of the high frequency resonance band.
可用于实现包络解调提取振动信号在高频谐振带的包络成分。