Howtosignalprocessing
- What is the cross power spectrum?
- What is cross spectrum analysis?
- What is coherence of two signals?
- What is spectral coherence?
What is the cross power spectrum?
The cross power spectrum is a two-sided complex form, having real and imaginary parts. You can convert the cross power spectrum to magnitude and phase in the same way you compute the amplitude and phase spectrums of a power spectrum. You also can convert the cross power spectrum to a single-sided form.
What is cross spectrum analysis?
Cross spectral analysis allows one to determine the relationship between two time series as a function of frequency.
What is coherence of two signals?
In signal processing, the coherence is a statistic that can be used to examine the relation between two signals or data sets. It is commonly used to estimate the power transfer between input and output of a linear system.
What is spectral coherence?
This measure, which we call the complex degree of spectral coherence, or the spectral correlation coefficient, characterizes the correlations that exist between the spectral components at a given frequency in the light oscillations at two points in a stationary optical field.
