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Unformatted text preview: 3000 Hz
– S/N = 30dB D =3000 x 10 ~30000bps The significance of Nyquist’s
and Shannon’s Theorems Nyquist’s theorem encourages engineers to
explore ways to encode bits on a signal.
– A clever encoding allows more bits to be
transmitted per unit time. Shannon’s theorem informs engineers that
no amount of clever encoding can overcome
the laws of physics.
– There is a fundamental limit on the number of bits
per second that can be transmitted in a
realcommunication system. Summary
Local, asynchronous communication The RS-232 standard Baud rate and bandwidth Nyquist’s and Shannon’s theorems...
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This note was uploaded on 08/14/2011 for the course ELECTRONIC G52CCN taught by Professor Professorgail during the Spring '09 term at Uni. Nottingham.
- Spring '09