Carson bfm 1 for f b if1 1 f b rf h if1 jf

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Unformatted text preview: - v sim (t ) = As cos sim t , - v r (t ) : FM (t ) , v FM (t ) = Ac cos( c t + FM (t )) : (8 : Phase of signal 2 1.5 1 0.5 FM (t) 0 -0.5 -1 -1.5 -2 0 50 100 150 200 t [ sec] 250 300 350 400 . f C = 200 250 MHz f C 6 ( (10%) Hz . n = 4 K FM f m V . v FM (t ) ( ) ((16%) (image) f IF 1 . 200 MHz - 250 MHz Frequency Detector - SNR r f IF 2 . Q IF 2 = 50 - IF2 . f sim 2 Q IF1 - IF1 f c SNR r . 200 250 MHz : ((14%) Ac (5%) . p( An > Ar ) 0.03 : Local Oscillator 1 f1max f1min (5%) f C = 200 250 MHz f 2 > nf1max - . f 2 = 300 MHz Local Oscillator 2 . SNRd LPF (4%) 3 ' (30%) : Transmitter vm( t ) Modulator v M (t ) Amplifier Kp vT ( t ) PT Channel kch = -30dB + n(t) xd ( t ) Receiver LPF Demodulator xR...
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This note was uploaded on 05/01/2008 for the course COM ENG 909 taught by Professor Drj during the Spring '08 term at Ben-Gurion Uni..

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