论文信息 - On the combining of the amplitude and phase modulation in the same signal

On the combining of the amplitude and phase modulation in the same signal

A method of contemporary use of digital and analog modulation on the same bandwidth is described. The phase of the carrier of an AM signal is modulated by a digital one. The rate of the digital signal depends on the RF bandwidth of the analog signal. The proposed technique can increase the bandwidth efficiency of existent communication systems. Measurements and results of a full hardware implementation will show the applicability of the method.

John N. Sahalos | Christos S. Koukourlis | J. C. Pliatsikas | J. Sahalos | C. Koukourlis

[1] S. Pasupathy,et al. Minimum shift keying: A spectrally efficient modulation , 1979, IEEE Communications Magazine.

[2] J.A.C. Bingham,et al. Multicarrier modulation for data transmission: an idea whose time has come , 1990, IEEE Communications Magazine.

[3] S. Gronemeyer,et al. MSK and Offset QPSK Modulation , 1976, IEEE Trans. Commun..

[4] G. D. Forney,et al. The V.34 high speed modem standard , 1996 .

[5] G. B. Lockhart,et al. Towards real-time implementation of a radio-data system for AM sound broadcasting , 1989 .

[6] Leon W. Couch,et al. Modern communication systems , 1995 .

[7] G. B. Lockhart,et al. Analysis and simulation of a hybrid modulation scheme for embedding data in amplitude-modulated signals , 1991 .

[8] Y. O. Al-Jalili,et al. Characteristics of reduced bandwidth envelope detected minimum-phase signals , 1990 .

[9] Ii Leon W. Couch. Modern Communication Systems: Principles and Applications , 1994 .

[10] J.E. Mazo,et al. Digital communications , 1985, Proceedings of the IEEE.

[11] K. Maxwell. Asymmetric digital subscriber line: interim technology for the next forty years , 1996 .