spectral power spectrum 谱功率谱 spectral radiant power 光谱辐射功率 spectral dispersion power 光谱色散率 spectral power 谱功率 peak spectral power 峰值光谱功率 相似单词 Power 鲍尔铅基轴承合金 power n. 1.力量 2.能力;本领;才智 3.权力;影响力 4.(powers)权力范围;职权 5.授权;授权证书 6....
而功率谱密度(PSD,Power Spectral density)表示被测单位的^2/Hz,例如V^2/Hz 3、频谱和功率谱密度的区别 对于周期信号,其傅里叶变换收敛因此可以用频谱(Spectrum)来描述;对于随机信号(实际的信号基本上是随机信号),傅里叶变换不收敛,因此不能用频谱来描述,而应当使用功率谱密度(PSD)。而工程上的信号通常都是随...
在DFT的基础上发展出了FFT，使得整个计算过程加快，这样对于一个信号就可以很快的分析出它的频谱了。但是...
What is Power Spectral Density - Power Spectral DensityThe distribution of average power of a signal $xmathrm{left(mathit{t}right)}$ in the frequency domain is called the power spectral density (PSD) or power density (PD) or power density spectrum. The P
power density spectrum 功率密度谱 cross power density spectrum 互功密度谱 angular power spectrum 角功率谱 line power spectrum 线路功率谱 spectral power spectrum 谱功率谱 power spectrum 功率频谱,功率谱 continuous power spectrum 连续功率谱 uniform power spectrum 均匀能谱,均匀能谱 power spect...
更确切的说,噪声波形x(t)的PSD,即SX(f),被定义为f附近1Hz带宽内x(t)具有的平均功率。 B. Power spectral density (PSD): the spectrum shows how much power the signal carries at each frequency, written as Sx(f). C. 相关知识点: 试题来源: 解析 A.nswer:(书)表示在每个频率上信号具有的功率...
spectral density[′spek·trəl ′den·səd·ē] (electromagnetism) spectral energy distribution (mathematics) The density function for the spectral measure of a linear transformation on a Hilbert space. (systems engineering) frequency spectrum McGraw-Hill Dictionary of Scientific & Technica...
2) spectral power density 谱能密度3) power spectrum density 功率谱密度 1. 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 2. In this system,the characteristics of monitoring signals are extracted by the method of power...
PowerSpectralDensityand：功率谱密度
6) autoregressive power spectral density(NAR-PSD) 自回归-功率谱密度(NAR-PSD)补充资料:功率谱密度估计 随机信号的功率谱密度用来描述信号的能量特征随频率的变化关系。功率谱密度简称为功率谱,是自相关函数的傅里叶变换。对功率谱密度的估计又称功率谱估计。平稳随机信号x(t)的(自)功率谱Sxx(ω)定义为 (1...