Abstract
We showed in Part I of this paper that the estimation of the white-phase noise level of a sampled signal may be achieved with variances even if the sampling frequency is far lower than the high cut-off frequency. In Part II, the effects of spectral aliasing for the different types of noise are reviewed. The responses of the Allan variance and the modified Allan variance for high-frequency noises are calculated taking into account the spectral aliasing. It is demonstrated that the effects of spectral aliasing for low-frequency noises may be neglected.