TABLE OF CONTENTS Understanding modulation is important to understanding AM and FM broadcasting and receiving. The advantages of both are presented and methods of improving both are discussed. The key features of modulation and demodulation are discussed in this section.
Pulse modulation and demodulation is widely used in communications and control. Various techniques are discussed and compared.
Although optical radiation is just another form of electromagnetic radiation, the transmitters and receivers are considerably different from those used at radio frequencies. The use of these devices has increased rapidly necessitating a better understanding of the devices themselves.
We conclude the section with a discussion of frequency converters and detectors. Characteristics that lead to effective design are presented and discussed. C.A.
In This Section:
Section Bibliography:
Bach Andersen, J. (ed.), Modern Radio Science 1990, International Union of Radio Science, Oxford University Press, 1990.
Bedrosian, E., Amplitude and Phase Demodulation of Filtered AM/PM Signals, Rand Corporation, 1986.
Carden, F., Telemetry Systems Design, Artech House, 1995.
Dixon, R. C., Spread Spectrum Systems, Wiley-Interscience, 1976.
Dixon, R. C. (ed.), Spread Spectrum Techniques, IEEE Press, 1976.
Engberg, J., and T. Larse, Noise Theory of Linear and Nonlinear Circuits, Wiley, 1995.
Freeman, M. H., Optics, 10th ed., Butterworth-Heinemann, 1995.
Gibson, J. D.
