Quiz1Review

Quiz1Review - capacity = 2 * BW * log 2 L [Nyquist]...

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IT420 Spring 2011 Formulas for Quiz 1 (This exact sheet will be provided with Quiz 1) milli = 10 -3 kilo = 10 3 micro = 10 -6 mega = 10 6 nano = 10 -9 giga = 10 9 pico = 10 -12 tera = 10 12 application, transport, internet, network interface, physical s(t) = Asin(2πft + φ) f = 1/T 360° = 2π radians BW = (f high – f low ) If b = a x then log a b = x log a b = log 10 b / log 10 a bit rate = 1/bit interval bit rate = levels/sec * bits/level
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Unformatted text preview: capacity = 2 * BW * log 2 L [Nyquist] capacity = BW * log 2 (1 + SNR) [Shannon] SNR db = 10 log 10 (signal/noise) Sampling rate = 2 * highest frequency [Nyquist] Manchester: 1 = negative to positive in middle, 0 = positive to negative in middle Diff Manchester: 1 = no transition at beginning, 0 = transition at beginning, transition in middle...
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