11. Many authors use this equality to actually " define " the power spectral density . 12. More generally, similar techniques may be used to estimate a time-varying spectral density . 13. Spectral density matched to the receive radar detection bandwidth is the limiting factor for maximum range.14. Other techniques that do not rely on periodograms are presented in the spectral density estimation article. 15. You take the Fourier transform and then take its absolute square to get the spectral density . 16. The spectral density function of long-range dependence follows a power law near the origin. 17. :PSD is Power spectral density . 18. Also like other time-varying signals, jitter can be expressed in terms of spectral density . 19. This definition of the power spectral density can be generalized to discrete time variables x _ n. 20. Therefore, the Wigner function tells us ( roughly ) how the spectral density changes in time.
