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Problem 10.7 Sketch a block diagram of a transmission system including both

transmitter and receiver for BPSK modulation with root-raised cosine pulse shaping.

Solution

The BPSK transmitter with root-raised cosine pulse shaping is shown in (a), and thecorresponding BPSK receiver is shown in (b).

 

Root

Raised

ne

r 

Cosi

Filte

Modulated

Impulse

Train

Data  )2sin()()(   t  f t mt s cπ  ±=

)2sin(   t  f cπ  

Root

ed

ine

lter 

Rais

Cos

Fi

Data

)2sin(   t  f cπ  

T-spaced

Sample

Clock

)(t r 

(a)

(b)

 

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