Schaum's outline of theory and problems of analog and digital communications by Hsu, Hwei P. (Hwei Piao) 1930- .

Transmission analysis in communication systems by Shimbo, Osamu 1931-

Digital phase modulation by Anderson, John B. 1945-

Phase noise in signal sources theory and applications by Robins, W. P.

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Introduction to communication theory by Roden, Martin S.

Modulation, noise, and spectral analysis applied to information transmission by Panter, Philip F.

Modulation theory by Black, Harold S. 1898-