对加速度进行特征提取,可以使得波形的幅度特征更加明显,有利于进行轨道故障的检测。
The waveforms 'amplitude character will be more distinct through accelerations 'feature extraction, and this is propitious to rail deformation detection.
介绍了一种基于信号幅度特征的时域提取算法,可以准确地从数模混合信号中提取数字信号。
This paper introduces a time-domain extracting arithmetic based on signal range feature. The digital signal can be extracted from digital and analog mixed-signal exactly.
用合适的滤波器可以从估计出的平均频率曲线中得到涡流的波形,并且计算表征涡流的涡流经过频率和幅度特征参数。
Meanwhile the vortex shift waveform is obtained from the estimated mean frequency waveform using a suitable low-pass filter. Then the vortex shedding frequency and amplitude can be calculated.
另外一个特征是它将可能降低对大银行流动资产负债表上资本的要求,在有些情况下,降低的幅度可能会相当大。
Another feature is that it will probably allow many big Banks to reduce the capital needed for their current balance sheet, in some case quite sharply.
通过建立研究区LUCC幅度、LUCC数量和空间变化模型以及趋势与状态指数模型,很好的表现了研究区LUCC的时空特征。
By establishing mathematical models in the range, quantitative and spatial dynamic change, trend and state index of LUCC, the spatial-temporal characteristics of LUCC can be deeply studied.
建立了单纯由幅度谱值构成的对称连杆曲线的特征参数。
The characteristic values are established of a symmetric coupler curve consisting only of the amplitudes.
与传统密码相比,人的生物特征具有许多天然的优势,可以大幅度提高网络的安全性能。
Compared with the traditional passwords, man's biometric features have many advantages, which can help people improve the security of networks.
雷达回波信号中,除幅度、相位和多普勒频移外,还存在第四特征——极化信息。
Besides amplitude, phase and Doppler frequency, polarimetric information is the fourth characteristic in the radar echo.
其异常特征表现为形态相似、时间同步、幅度明显等特点。
The anomalous characteristics show the similar shape, synchronous time, and obvious amplitude.
前言:通过热动力学计算,认识了脱附过程当中储罐内温度剖面分布的典型特征:储罐轴心处的温度下降幅度最大。
With heat dynamics computation, the typical feature of temperature section plane during discharge in storage system is drawn: the drop extent on storage system axes is the largest.
在能量调制过程中,系数的修改幅度由图像纹理特征和能量调制模型来控制。
During the modulation, a theorem deduced from the texture features and energy modulation model is employed to restrict the modified magnitude of coefficients.
研究表明,中强地震地电阻率异常特征非常复杂,异常的时间一般只有60—90天,异常的幅度也只有1%—2%。
The telluric resistivity anomaly of moderate strong earthquake has a complicated feature, the length of the anomaly duration is only 60-90 days, the amplitude of the anomaly is 1-2%.
建立了单纯由幅度谱值构成的对称连杆曲线的特征参数。
The characteristic values of a symmetric coupler curve are established to be consisting simply of the amplitudes.
从此观点出发,导出以二层电性剖面为特征的台站正常地电阻率相对似年变化幅度公式。
From this model section, a formula is obtained for calculating the amplitude of relative apparent annual variation of resistivity at a station characterized by two resistivity layers.
研究特征信号幅度与转速和载荷的关系;
Study the characteristic signal range with turn soon and carry the relation of the lotus.
文章针对此不足,将样本的幅度作为样本特征分量的办法,对传统的ART2网络进行了改进。
Based on this, the article improves classical ART2 network by taking amplitude as character component.
鉴别器,鉴频器:一种将输入信号的某一特征,如频率或相位转变为幅度变化装置,其变化大小因信号与标准或参考信号的不同程度而异。
Discriminator: a device that converts a property of an input signal such as frequency or phase into an amplitude variation depending on how the signal differs from a standard or reference signal.
本文综述了采用示波原理间接测量血压方法的研究进展,并介绍了波形特征法和幅度系数法两类血压判别方法的基本原理,对影响其测量精度的因素进行了分析。
The paper expatiated it on the basis of different algorithms in this field by dividing them into two categories named as feature point method and amplitude characteristic ratios method.
首先介绍从信号幅度、相位、频率及功率谱等特性中提取的三种特征参数,应用这三种参数采用人工神经网络对模拟调制信号进行了识别。
Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
而且含金构造中岩石的组构特征、糜棱岩类型、应变幅度、石英变形机制与金矿富集程度都有密切的关系。
The gold abundance is also related to the type of mylonite, the feature of micro-fabric, the mechanism of quartz deformation and the size of strain.
揭示了该地区土地利用数量变化的幅度、速度以及空间变化的区域差异、结构差异等特征。
The range, speed of land utilization quantity change and regional difference, space difference of land utilization spatial change were posted.
大部分发生结构变化原始序列与其趋势成分的波动性特征出现了显著差异,而结构变化点修正后序列及其趋势成分的波动幅度与范围极其相似。
Almost all of the original series and the trend components have different volatility features in the structure changes, but corrected series and the trend components are the most similar features.
DSWI能提供具有反射特征的成像、距离井眼的距离、反射幅度和走向方向。
The DSWI service provides an image of the reflective feature, its distance away from the borehole, the magnitude of the reflection, and its strike orientation.
通过验证,所产生的调制信号具有良好的误差向量幅度(EVM)和频谱特征。
The algorithm is verified by experiments and the modulator can produce digital modulation signals with good EVM(Error Vector Magnitude) and spectrum mask.
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。
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.
由于高原隆升、全球气候增暖幅度不断增加,气候的持续干旱将是藏北大湖区未来气候的主要特征。
Owing to plateau building-up and the warmer of the global climate a, the continuing drought climate will be the main features of the northern Qinghai-Tibet Plateau in further.
生命体等摄动目标以一定频率、较小幅度振动,其回波具有微多谱勒特征。
Micro vibrational targets, such as living things, are vibrate with certain frequencies and micro amplitudes, which module the echo as micro Doppler signals.
峰值径流流量后,含沙量降低,表现为变化幅度小的低含沙量特征。
After the peak runoff rate, sediment concentration decreases and variation amplitude reduces.
这些形变电阻率脉冲的主要特征有:脉冲幅度超过平时观测标准误差3—20倍;
The chief characteristics of the resistivity pulses are: their amplitudes exceed the standard errors of measurements by 3-20 folds;
分析了规模性降价策略的特征,提出了计算最终降价幅度的方法。
The characteristics of price deduction strategies for large scale sales are analyzed, and the method of calculating the optimum level of price deduction is presented.
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