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Fiber Optic Video Transmission
book

Fiber Optic Video Transmission

by David Goff
October 2013
Intermediate to advanced content levelIntermediate to advanced
400 pages
10h 16m
English
Routledge
Content preview from Fiber Optic Video Transmission

Chapter 12

Video Over Fiber Using AM Techniques

 

 

Amplitude modulation represents the simplest technique for encoding any type of signal. In a baseband system, the input signal directly modulates the strength of the transmitter output. In the RF carrier AM technique, a carrier, with a frequency much higher than the encoded information, varies according to the amplitude of the information being encoded. In a fiber optic system, the magnitude of the voltage input signal directly translates into a corresponding light intensity.

Basics of AM

We know that a video signal contains a range of levels from black to white that equals 140 IRE units. This IRE amount corresponds to 1.0 Vp-p. Thus, one IRE unit equals about 7.14 mVp-p. A picture containing ...

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Publisher Resources

ISBN: 9780240804880