spectral density การใช้

• It is one of a number of approaches to spectral density estimation.
• The power spectral density of the longitudinal linear velocity component is
• The Dryden model has rational power spectral densities for each velocity component.
• Such a representation is called the power spectral density of the random process.
• The von K醨m醤 model has irrational power spectral densities.
• The spectral density of these switching waveforms has energy concentrated at relatively high frequencies.
• It is immediate to realize that the spectral density function is real and positive.
• In this model, the power spectral density of the longitudinal linear velocity component is
• Thus, the power spectral density function is a set of Dirac delta functions.
• This limits the satellite downlink power spectral density in case the video signal is lost.
• Many authors use this equality to actually " define " the power spectral density.
• More generally, similar techniques may be used to estimate a time-varying spectral density.
• Spectral density matched to the receive radar detection bandwidth is the limiting factor for maximum range.
• Other techniques that do not rely on periodograms are presented in the spectral density estimation article.
• You take the Fourier transform and then take its absolute square to get the spectral density.
• The spectral density function of long-range dependence follows a power law near the origin.
• :PSD is Power spectral density.
• Also like other time-varying signals, jitter can be expressed in terms of spectral density.
• This definition of the power spectral density can be generalized to discrete time variables x _ n.
• Therefore, the Wigner function tells us ( roughly ) how the spectral density changes in time.