quiz2solns09 - Quiz 2 Solution Spring 09 EE230B Prof Greg...

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EE230B Prof. Greg Pottie 1 Quiz 2 Solution Spring 09 EE230B Prof. Greg Pottie 2 a) Error Probability for BPSK For binary PSK, s 1 ( t ) = E φ 1 ( t ), s 2 ( t ) = − E φ 1 ( t ), where φ 1 ( t ) = 2 / T cos(2 π f c t ), 0 t T E E Signal space: Error probability: P ( e ) = Q 2 E N 0 dt T φ 1 ( t ) X Modulator Demodulator X φ 1 ( t ) +1 -1 +1 -1
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