instantaneous amplitude
英 [ˌɪnstənˈteɪniəs ˈæmplɪtjuːd]
美 [ˌɪnstənˈteɪniəs ˈæmplɪtuːd]
网络 瞬时振幅; 瞬时幅值
双语例句
- Speech Coding Based on Instantaneous Amplitude Plus Noise Model
基于瞬时幅度加噪声模型的语音压缩 - Compared with the original method, the improved one has better effect on the calculation of instantaneous amplitude, instantaneous phase and instantaneous frequency in the synthetic seismogram.
将改进后的算法应用于合成地震记录计算瞬时振幅、瞬时相位和瞬时频率，获得了较好的效果。 - A method for image reconstruction using instantaneous amplitude
用瞬时振幅进行图像重建的方法 - The results of the boiler start-up simulation showed that the time of start-up would decrease with the increase of flue consumption, but instantaneous pressure amplitude would increase.
锅炉启动模拟仿真结果中发现，锅炉启动时燃料量增加，锅炉的启动时间就会减少，但是瞬时升压速度会增加； - We carried out ″ three instantaneous ″ processing ( instantaneous phase, instantaneous frequency and instantaneous amplitude) for 4 lines in the anomalous zone. Combined with drilling data, interpreted and outlined gas-bearing extent in the coalfield.
对该异常范围内4条测线资料进行三瞬处理（瞬时相位、瞬时频率、瞬时振幅），结合钻孔资料，解释并圈定了该煤田的含气范围。 - Utilizing instantaneous amplitude, phase and frequency information of the modulated signal, some high quality features, proved in theory, are extracted.
第四章则是论文工作的重点。利用各类数字调制信号的瞬时幅度、相位和频率特点，提取几种的具有良好性能的特征参数并且分别在理论上分析该特征参数的分类能力。 - A new algorithm based on the combination of instantaneous amplitude of signal and wavelet transform is proposed for automatic identification of digital modulated signals.
本文提出了一种基于信号瞬时幅度与小波分析相结合的数字调制制式的自动识别新算法。 - Though the instantaneous amplitude has something correlated with the reservoir distribution, human error may be made when recognizing the instantaneous amplitude information on account of noise.
而瞬时振幅信息虽然与储层分布的关系密切，但抗噪能力较差，在断续问题上也容易造成人为误差。 - So in the paper, to periodic signal we suppose Morlet wavelet as basic wavelet, and research the local extreme point and extrema of the wavelet transform on periodic function for the collection of signal's instantaneous amplitude and period.
最后本文通过确定周期信号连续小波变换的模极大值和极点的位置来定量的描述信号的基本信息，如振幅、频率、相位、瞬时频率和瞬时振幅等。 - The appearances of BSRs oon near offset profile, stacked profile, migration profile, migration profile, instantaneous amplitude profile and instantaneous phase profile are compared and described.
比较了近炮检距剖面、叠加剖面、偏移剖面、瞬时振幅剖面与瞬时相位剖面上BSR的显示特征。 - The Algorithm Based on Zero-Crossing and Extremum Estimation to Obtain Instantaneous Frequency and Instantaneous Amplitude
基于过零点-极点估计的瞬时频率幅度算法 - A New Method of Instantaneous Amplitude and Frequency Estimations for Doppler Ultrasound Signal
超声多普勒回波信号瞬时幅度和瞬时频率估计的新方法 - Wavelet transform theory is used to obtain both the instantaneous and phase-group characteristics of seismic data, including instantaneous phase section, phase characteristic section, instantaneous amplitude section, group characteristic section and instantaneous frequency section.
本文应用小波变换理论对地震资料进行地震瞬时特征和相群特征的提取，包括：瞬时相位剖面和相特征剖面；瞬时振幅剖面和群特征剖面； - Automatic Classification of Digital Modulated Types Based on the Combination of Instantaneous Amplitude and Wavelet Transform
基于瞬时幅度与小波分析相结合的数字调制制式的自动识别 - 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。 - The friction increase along with the dynamic friction coefficient. But there will be great instantaneous amplitude that would cause vibration of brake system and worsen the stability.
摩擦力随着动摩擦系数的增加而增加，但是动摩擦系数高时，瞬时振动有较大的振幅，产生制动器振动，降低了制动器工作的稳定性； - The application of instantaneous amplitude coherence analysis method to reservoir prediction
瞬时振幅相干法在储层预测中的应用 - Instantaneous amplitude and phase main sequences of signals are extracted through sampling, decimating and filtering of Intermediate Frequency ( IF) signal to complete orthogonal decomposition of signal.
采用中频直接采样、抽取和滤波的方法完成信号的正交分解，从而提取信号的瞬时包络和相位主值序列。 - Hence, A new method for image reconstruction using instantaneous amplitude is put forward here.
针对这一情况，我们提出一种采用瞬时振幅进行图像重建的方法。 - The instantaneous signal amplitude can be increased due to the impulse drive characteristic of the infrared source, the adaptability to the surface condition of the workpiece can be thus improved.
利用光源的脉冲驱动特性，加大了瞬时信号功率，改善了光学传感器对工件表面的适应性。 - The signal is firstly decomposed into intrinsic mode function ( IMF) by the EMD method. Then Hilbert spectrum and Hilbert marginal spectrum are obtained from instantaneous frequency and amplitude obtained from Hilbert transform.
通过EMD方法提取信号的固有模态函数（IMF），再进行Hilbert变换，求瞬时频率、瞬时振幅，得到信号的Hilbert谱，进而得到Hilbert边际谱，对故障暂态和扰动信号进行了分析。 - Using digital signal processing method, the feature sample is obtained by extract-ing the instantaneous amplitude, phase, frequency and their statistical characteristics from the modulated signals.
采用数字信号处理方法，从已调信号中提取信号关键特征以及它们的统计值作为样本特征集。 - It extracts the high frequency components related to spikes in EEG signal by EMD method. It detects the spikes by calculating the instantaneous amplitude of the high component with Hilbert transform.
这种方法将EMD分解与Hilbert变换相结合，自适应地提取原始EEG信号中包含棘波特征的高频分量。 - Especially, SAIS ( Sinusoidal Approximation of Instantaneous Signal) is presented for instantaneous signal processing under fault circumstance, whose foundation is instantaneous amplitude and phase.
特别是就故障时的瞬变信号提出了正弦逼近处理方法，该方法的理论基础是瞬变信号的瞬时幅值和相位表示方法，这种表示方法与传统表示方法在结果上是一致的。 - Three features parameters derived from the instantaneous amplitude, instantaneous phase, instantaneous frequency and power spectrum of analogue modulated signals are presented in this article.
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。 - Therefore, we propose an improved sinusoidal model called instantaneous amplitude ( IA) model.
因此，我们提出了一种改进型正弦模型&瞬时幅度（IA）模型。 - Accurate instantaneous frequency and instantaneous amplitude of harmonic components can be obtained by using Hilbert transform.
对分离出的单分量谐波信号进行Hilbert变换，可以得到各次谐波的瞬时频率和瞬时幅值，即可以得到真正意义上的时频分布。 - In this thesis, a combination of deterministic components and random components of speech signals-instantaneous amplitude+ noise model, has been proposed, which is an improved version of sinusoidal+ noise model.
本文研究了一种确定分量和随机分量组合的语音信号表示模型&瞬时幅度+噪声模型，它是正弦+噪声模型的一种改进型结构。 - EMD is used to decompose the vibratory signals with noises to obtain a number of IMF and then instantaneous frequency and amplitude of the signal can be obtained from each IMF after Hilbert transforming and the Hilbert spectrum is obtained which shows the complete distribution of time and frequency.
EMD分解法将信号分解为若干个imf分量，再对每个imf分量进行Hilbert变换得到瞬时频率和瞬时幅值，得到信号的Hilbert谱，表示了信号完整的时间-频率分布。