Spectral Estimation Techniques: Correlogram, Blackman–Tukey, Windowed Periodogram, Bartlett, and Welch Methods
1. Lathi, B.P. and Ding, Z., 1998. Modern digital and analog communication systems (Vol. 3, pp. 184-187). New York: Oxford university press.
2. Anderson, J.B., 2006. Digital transmission engineering. John Wiley & Sons.