power spectral density是什么意思

网络释义

用法例句

TAM method of analyzing power spectrum density of heavy-tailed ON/OFF Source;

分析重尾ON/OFF源功率谱密度的TAM近似法

In this system,the characteristics of monitoring signals are extracted by the method of power spectrum density maximum(PSM),and least square support vector machine(LS-SVM) is proposed to detect damages.

基于被动监测技术的局限性,搭建了损伤主动监测系统,对监测信号进行了功率谱密度最大值(PSM)特征提取,并提出了一种基于最小二乘支持向量机(LS-SVM)的损伤检测方法。

The online measuring of the ground surface roughness was estimated by taking into account the power spectrum density of the frictioninduced acoustic emission.

利用摩擦产生的声发射(AE)信号的功率谱密度对磨削表面粗糙度进行在线评价。

Study and validation of the relationship between international roughness index and power spectral density;

国际平整度指数与路面功率谱密度相关关系研究及验证

Specifying surface roughness of optical film substrate using the power spectral density;

利用功率谱密度函数表征光学薄膜基底表面粗糙度

Power spectral density measurement for large aspheric surfaces;

用于大口径非球面的波前功率谱密度检测

MATLAB numerical simulation of stationary stochastic porcess based on ISTA PSD;

基于ISTA功率谱密度的MATLAB随机过程时域样本再现

Pulse Shape of UWB Signals and PSD Analysis;

UWB信号波形及功率谱密度的分析

The track spectra of Qinhuandao-Shenyang(QS) passenger railway line and German railways were compared in terms of power spectrum density(PSD),amplitude of time domain samples and dynamic performance.

从轨道谱的功率谱密度、时间样本幅值及对动力学性能影响的角度,对比了秦沈线轨道谱和德国轨道谱。

With its attacking traffic pattern,obvious difference was found between the power spectrum density(PSD) of legitimate and attack traffic samples.

分析发现,合法流量和包含攻击包流量采样在功率谱密度上存在显著差异。

Directed against the situation of difficult to estimate the vibration fatigue life-span under complex random loading in engineering practice,the estimation of fatigue life-span on the viabrational component parts under random loading has been carried out based on Power Spectrum Density(PSD) function.

针对工程实践中复杂随机载荷下振动疲劳寿命难估算的情况,基于功率谱密度函数(PSD)对随机载荷下的振动构件进行疲劳寿命估算,分别讨论了窄带随机载荷和宽带随机载荷两种情况,方法简单,具有很强的工程实用性。

The Short Time Fourier Transform(STFT) is utilized to estimate the power spectral density(PSD)of the tunneling-current signals and the data s feature vector was extracted in the frequency space.

针对STM采集的信号,运用短时傅立叶变换对其波形数据进行功率谱密度估计,对信号在频率域中的特征向量加以提取。

Transmitted reference ultra-wide band(TR-UWB) system is introduced,and the power spectral density(PSD) of conventional single user TR-UWB signals presented.

介绍了传输参考超宽带(TR-UWB)系统,给出了传统单用户TR-UWB信号的功率谱密度(PSD);针对多用户情况下的TR-UWB信号,结合数学模型,给出了TR TH-PPM和TR TH-PAM信号功率谱密度的数学表达式。

Based on random vibration theory,an iteration approach has been adopted to calculate the acceleration power spectral density(PSD) corresponding to design response spectrum curve of the GB50011-2001.

回顾了地震地面加速度随机过程模型,根据随机振动理论采用迭代方法求解出与我国现行《建筑抗震设计规范》(GB50011-2001)设计反应谱相对应的功率谱密度函数,选用胡聿贤功率谱密度函数拟合上述功率谱密度函数,运用非线性拟合技术给出了与规范对应的胡聿贤功率谱参数,可供这种模型作为地震地面运动输入时选用。

The concept of" equivalent noisy power spectral density" is introduced in this paper.

文中提出等效噪声功率谱密度的概念。

Damage Detection of Steel Bridge Based on Acceleration Power Spectral Density

加速度功率谱密度在钢桥损伤检测中的应用

Simulation of Multi-state Digital Baseband Signal's Power Spectral Density

多进制基带信号功率谱密度的仿真分析

Floor response spectra analysis of base-isolated structure based on PSDF

隔震结构基于功率谱密度函数法的楼层反应谱分析

Algorithm of Artificial Time Histories Meeting Requirements of Both Fitting of Response Spectrum and Envelop of Power Spectral Density

同时满足反应谱匹配和功率谱密度包络要求的人工时程生成算法

Characterization of Ultraprecision Machined Surfaces Using Spectral Density and Fractal Analysis;

超精密加工表面的功率谱密度与分形表征技术研究

Comparison of Ultra-Precision Machined Surface Roughness Measurement Methods and Power Spectral Density Characterization

超精密加工表面粗糙度测量方法对比及功率谱密度评价

Road irregularity, as a stationary stochastic process, is generally illustrated by power spectral density (PSD) in frequency domain.

道路随机过程通用的描述方法为频域的功率谱密度函数方法。

The Application of Theory of Acceleration Power Spectral Density for Structure Damage Detection

加速度功率谱密度理论在结构损伤检测中的应用

Power spectral density method of defects on optical elements of high-power laser facility and its equivalent algorithm

高功率固体激光装置光学元件“缺陷”分布的功率谱密度方法及等效求法

Floor Response Spectra Analysis of Nuclear Reactor Buildings with Additional Base-Isolation Measures Based on PSDF

基于功率谱密度函数法的核电厂房增加隔震措施后的楼层反应谱分析

Fingerprint Key Generation Algorithm Based on Frequency Spectrum Texture Analysis

基于功率谱纹理分析的指纹密钥算法

double frequency spectral density functio

双重频率谱密度函数

In this paper, a power spectrum of discontinuous narrow band white noise is analysed, and an expression of the power spectrum is obtained.

对间断窄带白噪声的功率谱进行了分析,得到其功率谱的表达式。

A Study on the Relationship between Turbulence Power Spectrum and Stochastic Fourier Amplitude Spectrum

脉动风速功率谱与随机Fourier幅值谱的关系研究

Study on Seismic Design of Single Slanted Pylon Cable-stayed Bridge With Stochastic Vibration Analysis and Response Spectrum Analysis Methods

独斜塔斜拉桥抗震的功率谱法与反应谱法分析

Calculus of Power Spectrum of Impulse Signal with Random Drift

具有随机漂移脉冲信号的功率谱计算

POWER SPECTRUM ANALYSIS OF PN COMBINED CODE DIGITAL MODULATION WAVEFORMS

伪随机复码数字调制波的功率谱分析