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.TL
com systems
.AU
Lucas Standen
.AI
.EQ
delim #@
.EN
.EQ
delim ##
.EN
QMC
.2C
.NH 1
work
.LP
1)a)i) noise is additional signal, applied to the top of the input. distortion is where the signal itself is modifided.
1)a)ii)
.EQ
{SNR sub db} = 10 log ( {p sub s over p sub n} )
.EN
.EQ
20 = 10 log({ p sub s over {0.1 times 10 sup -3}} )
.EN
.EQ
2 = log({ p sub s over {0.1 times 10 sup -3}} )
.EN
.EQ
10 sup 2 = p sub s over {0.1 times 10 sup -3}
.EN
.EQ
10 sup 2 times {0.1 times 10 sup -3} = p sub s
.EN
.EQ
{p sub s} = 10mW
.EN
1)c)
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