- cross power spectrum
- crosspower spectrum
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互功率谱的英文
例句与用法
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- In order to obtain these data , we must at first calculate apsds ( auto - power spectral density ) and cpsds ( cross - power spectral density ) of the three signals in the system
而想要得到这些核心参数,必须先分析估计出系统中三路信号的自功率谱密度和两两之间的互功率谱密度。 - Studies have been made on arithmetic realization of apsd estimate in a high - speed detect system , since the way of calculating cpsd is only a little different from that of calculating apsd
鉴于互功率谱密度估计算法只需将自功率谱密度估计算法中的自协方差函数换成互协方差函数,本文仅研究和讨论了自功率谱密度估计算法及其实现。 - In the aspect of blind - identification , the mutual power spectrumx time - frequency distribution product of two delay signals are used as the features of classification . the cluster analysis and cumulant invariants of mpsk signals are used to automatically classify communication signals
在信号识别中，选取信号的互功率谱、时频分布、 mpsk信号的延迟相乘信号作为分类特征，利用模式识别中的聚类分析以及mpsk信号的基于高阶累积量构成的分类特征不变量实现了信号调制类型的自动分类。 - The signal process function of the software include these function : digital filter , windowing , auto - correlation function and cross - correlation function , mean and variance , probability density function and probability distribution function statistic ; auto - power spectrum , cross - power spectrum , frequency response function , coherence function , cepstrum analysis based on fft ( fast fourier transfer ) ; joint time - frequency analysis based on stft ( short - time fourier transfer )
软件的处理功能包括：数字滤波、时域加窗、自相关与互相关处理、均值和方差计算、概率密度和概率分布函数计算；在快速傅立叶变换( fft )基础上计算自功率谱、互功率谱、频率响应函数、相干函数、倒频谱分析；基于短时傅立叶变换( stft )的联合时频分析等。 - In the paper , firstly , present the formulation and application of proper orthogonal decomposition of covariance and cross - power spectral density matrices are presented in the analysis of wind load effects on structures . then the dynamic response of linear structures subjected to random loads is analyzed by a technique called double modal transformation ( dmt ) that is expressed through a double series whose terms depend on structural and loading modes
本论文中首先通过求相关矩阵和互功率谱密度矩阵特征值问题给出了本征正交分解的公式，并利用pod与结构模态相结合的双模态方法来分析结构的动态响应，主要讨论了截断高阶荷载模态对风致响应的影响。