demodulated

In this program,the channel value are demodulated.

二进制序列及为该信道对应的解调结果。

Conditions resulting from decisions based on demodulated telegraph signals.

由基于解调的电报信号的那些判定所导致的一些状态。

After the data is demodulated, subcode is available to the control system.

解调制完成以后,控制系统就可以获得子码信息。

The detected signal is demodulated and then supplied to a decoder unit.

检测到的信号解调后提供给解码器单元;

The reconstruction signals were demodulated with Hilbert transform, and envelope spectrum at each band was obtained.

利用希尔伯特变换解调分析各频带信号,得到对应频带信号的包络谱;

The observed signals are filtered and demodulated into a number of single frequency stationary signals.

观测信号经滤波和解线调处理,变换为一系列单频平稳信号。

In this paper, it is suggested that modulated signal be demodulated by digital PLL.

并 结合实际应用提出了用数字锁相环进行调频信号解调的建议;

This paper introduced rolling bearing fault diagnosis based on demodulated resonance technique and neural network.

摘要介绍了一种基于共振解调与神经网络技术的滚动轴承故障诊断方法。

A Circulated Demodulated Method of Distributed Fiber Raman Temperature Sensor[J].

引用该论文 张利勋,欧中华,刘永智,代志勇,彭增寿,王大文.

Resonant wavelengths is demodulated by using a turnable F-P interferometer of simple and small frame and practicability.

谐振波长的解调采用可调谐F-P腔干涉解调,结构简单,体积小,易于实用化。

At the receiving front-end, the modulated bit strams are demodulated by the microwave sampler along with a low pass filter.

经由接收端之微波取样电路进行取样后,可由低通滤波器进行讯号之解调变。

The experiment verified, the Demodulated Resonance Technique is a right method in vibration signal processing in the rolling bearing fault diagnosis.

结果表明:在LabVIEW环境中使用共振解调法诊断滚动轴承故障能够取得比较好的效果。

Complex programmable logic device(CPLD) is finally used in the ground decoding process and then the data is demodulated.

地面利用复杂可编程逻辑器件CPLD实现数据的解调。

Then after amplitude limiting, to be preamplified, demodulated, bandpass filtered, the doppler frequency shift signal is extracted.

经过限幅保护,接收放大,检波和带通滤波后,将多普勒频移信号提取出来。

Then, we modulate the formal parameter-modulated system.In the receiver, the information is demodulated by analyzing synchronization error .

然后,改进了一般参数调制系统,利用同步误差解调出信号,提高了系统的抗干扰能力;

Theoretical analysis and experimental results show that the method is suitable for the phase unwrapping of the demodulated spatial phase.

理论分析和实验结果证明该方法适用于条纹空间相位测量方法解调的包裹相位。

A method using demodulated resonance technique based on blind source separation is developed for gear contact diagnosis.

摘要提出一种运用基于盲源分离的共振解调技术对齿轮齿面接触故障进行诊断的方法。

From the flexible multicarrier system, the modulated message data of OFDM signal can be demodulated using the partial time-domain OFDM signal.

利用这个非常有利的性质,所有受冲突干扰受损的数据报都会以被恢复。

The sig-nals are pretreated, demodulated, voltage-to-frequency converted and transmitted to mi-croprocessor AT89C2051 to be counted and displayed.

本文介绍的四通道振动巡回监测仪是将传感器输出的信号经前置处理、检波、压频变换后送AT89C2051单片机计数并显示输出。

A method for diagnosing the rolling bearing faults in a gearbox based on Adaptive Noise Canceling(ANC) and Demodulated Resonance Technique(DRT) was presented.

提出了一种基于自适应除噪技术(ANC)和共振解调技术(DRT)的齿轮箱中滚动轴承的故障诊断方法。

The result of the computer simulation shows that frequency-shift signal can be demodulated accurately by using the EMD algorithm and combining with FFT.

仿真结果表明,用EMD分解算法能够从强噪声背景下分解出移频信号,结合FFT变换,可以实现移频信号的解调。

The broad-band signal demodulated into base-band signal with receiver by twice frequency conversion and down convertion of DDC orthogonal digital and got the orthogonal signals.

接收端经两次频率转换和中频采样与 DDC 正交数字下变频,把带宽信号解调到基带信号,得到相互正交信号。

The demodulated resonance technique combined with spectrum analysis and fuzzy-closest-principle were developed and applied to the fault diagnosis of bearings in drilling pump.

为了解决钻井泵轴承故障特征难以提取的问题,采用共振解调技术来提取深埋于正常振动信息中轴承的故障信息,在此基础上进行频谱分析。

In the receiver, the Kalman filter is used to reduce the noise interference.Then the filtered signals are demodulated by chaotic demodulation.

本文从抑制噪声干扰的角度出发,在接收端先使用卡尔曼滤波器对接收到的信号进行滤波处理,以降低噪声对混沌信号的影响,然后进行相应的混沌解调。

The paper put forward to adopt the method that the signals were preamplified and modulated by amplitude modulation, then demodulated by AM in-phase demodulation using PLL.

本文提出采用先经前置放大、调幅调制,然后再利用锁相环构成的调幅波同步检波电路解调得到有用信号的方法解决该问题。

Analysis the demodulated resonance technique (DRT), the result shows that it is effective and feasible to diagnosis faults of bearing un-disassembly using surface vibration signal.

分析了应用共振解调原理,利用轴承外表面振动信号对机器进行不解体故障诊断是可行的。

The incoherently demodulated spread spectrum modem with bandwidth of 4 MHz and data rate of 32 kbit/s uses PN sequence phase-coded SAW tapped delay lines(SWTDL)with center frequency of 32 MHz as the phasecoded waveform generator and matched filter.

表面波抽头延迟线非相干扩频调制解调器使用m序列相位编码表面波抽头延迟线作为相位编码波形发生器和匹配滤波器。 它具有4MHz带宽和32kbit/s的数据率。

Theoretical deduction proves that under the condition of all digital receiver, the ideal FM demodulated signal is equivalent to a signal with amplitude modulated by the frequency deviation.

理论推导证明,在全数字接收机条件下,载波频偏对于理想FM解调拾出信号的影响相当于对其进行了幅度调制。

By the method of transforming training sequences and calculating the mean square error of the demodulated signal in each subband branch, the optimal wavelet packet best-tree could be decided.

该算法在不增加传输系统复杂度的条件下,通过发送训练序列,并计算各个小波树分支解调信号的均方误差,从而确定最佳树优选分解。

Then a sensor network of FBG array is experimentally demonstrated combined with wavelength division multiplexing and every FBG signal is demodulated by using tunable optical filter.

实验结果很好地说明了该查询方案的可行性,且在单个光栅上的被测应变与可调谐滤波器的控制电压呈较好的线性关系。

CCD camera sequentially recorded eight gray images corresponding to the eight patterns, respectively.The range data of the object surface is demodulated using the pixel-based triangulation.

用CCD摄像机获取物体编码信息,用基于单一像素的三角法原理从摄像机图像中获取三维形貌数据。

The basic concept of class D amplifier is to convert the input analog signal into a pulse width modulated signal (PWM signal), then the PWM signal is demodulated to reconstruct the analog signal.

类功率放大器的基本概念就是将欲放大的信号转化为脉宽调制信号,用来驱动开关逆变器。

This article describes the design principles and methods of the system hardware and software in detail, realizes the application of the demodulated resonance technique based on hardware.

详细介绍了系统软硬件设计的原理和方法,实现了硬件共振解调技术的应用。

By a moving single period sine wave model, the instantaneous frequency of the signal is obtained, and then, by the integral of the instantaneous frequency, the PM signal wave is demodulated.

在调制信号是方波的情况下,给出了相位解调的仿真结果和其它参数的波动情况;

Low frequency demodulated technique

低频解调技术

Adaptive Demodulated Resonance Technique (ADRT)

自适应共振解调

Demodulated resonance technique

共振解调

demodulated colour subcarrier

解调彩色副载波

Demodulated Resonance Based on DTFT and it's Application in Fault Diagnosis of Rolling Element Bearings

基于DTFT的共振解调技术及其在滚动轴承故障诊断中的应用

Study on distributed in-fiber Bragg grating sensing system demodulated with a grating ruler

光栅尺解调的分布式光纤光栅传感系统

Minimum visibility for demodulated signal of N-element fiber grating sensor array

N元光纤光栅传感器阵列解调信号的最低可见度分析

the other is digital recorded signal can be directly sent to PC to be demodulated by software afterwards.

二是可以将数字记录的信号直接送PC机进行全软化事后解调。

Keywords PC sound card;biomedical electric signal;demodulated by software;digital low-pass filter.;

关键词PC声卡;生物医学电信号;软件解调;数字低通滤波器;

90. The spectra of the demodulated signal and the relationship between the input and output are also given.

还得到了输出信号的频谱和输入输出信号的关系。

Keywords drilling pump;bearing;fault diagnosis;demodulated resonance technique;spectrum analysis;fuzzy diagnosis;

钻井泵;轴承;故障诊断;共振解调技术;频谱分析;模糊识别;

Application of Demodulated Resonance Technique and Correlation Dimension in Different Frequency Bands to Bearing Fault Deterioration Diagnosis

共振解调及关联维数在轴承故障诊断中的应用

a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified.

能将当地频率和携带者的频率联合起来产生能解调和放大的超音频信号。

a radio receiver that combines a locally generated frequency with the carrier frequency to produce a supersonic signal that is demodulated and amplified

能将当地频率和携带者的频率联合起来产生能解调和放大的超音频信号

while the CD-ROM data demodulated is sampled into a computer, according to international standards, the data format and the modulation method are analysed by programming.

作者把CD-ROM光盘中未经任何解码的数据采入计算机,然后根据标准文件,对CD-ROM数据的格式及调制进行了编程分析,并提供了具体的分析方法。

demodulated repeater

解调中继器