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Unformatted text preview: Use Huffman coding to find the binary codes. What is the average coded message length? Problem 3 Plot the Fourier Transforms for t f A t c c 2 cos ) ( = and for t f t f t m m m sin ) ( = ? (You may choose to forfeit the points and ask the TA to give you an answer). Plot the spectrum of the AM modulated signal t f t Am t u c 2 cos ) ( ) ( = . What is the energy of the AM modulated signal? Now suppose we use Phase Modulation with 10 = p k , what is the bandwidth of the PM signal? Now suppose we use Frequency Modulation with 10 = f k , what is the bandwidth of the FM signal? Describe how you would obtain SSBSC from ) ( t u , and plot the corresponding spectrum. We use a BPF given as follows to filter ) ( t u to give ) ( t v . Plot the spectrum of the resulting signal....
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This note was uploaded on 11/01/2009 for the course EEE 455 taught by Professor Hui during the Spring '09 term at ASU.
 Spring '09
 Hui

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