Matlab计算信号频谱：频谱估计方法

Learn about the periodogram, modified periodogram,

Welch, and multitaper methods of nonparametric spectral estimation.

Use frequency analysis to characterize a signal embedded

in noise.

Use the Lomb-Scargle periodogram to study the periodicity

of an irregularly sampled signal.

估计包含信号大部分功率的频带宽度。对于失真信号，确定基波和谐波中存储的功率。

通过填零获得正弦信号幅值的精确估计。

Reduce bias and variability in the periodogram using

windows and averaging.

识别频域中信号之间的相似性。

Assess the significance of a sinusoidal component

in white noise using Fisher's g-statistic.

Perform spectral analysis of data whose values are

not inherently numerical.

获取正弦分量之间的相位滞后，并识别时序中的频域相关性。

Replace calls to nonparametric psd and msspectrum objects

with function calls.

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