Frequency Shift Keying Code ExplanationIn frequency shift keying the amplitude of the resultant signal is varied in accordance with the input bit sequence that we have defined. If the bit sequence is 0 the resultant signal is an analog signal of a defined frequency 20 for a defined range of time. If the bit sequence is 1 the resultant signal is an analog signal of a defined frequency 50 for a defined range of time. Matlab CodebitStream=[0 1 0 1 0 0];%defining a bit stream
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Alpha
3/9/2015 10:21:18 am
what does this part of your code mean? g(j+1)=carrier1(j+1)./carrier1(j+1);
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In this code, firstly modulation is done by multiplying the carrier1 signal to the input bitStream (defined). Then in the demodulation part simply that carrier1 (which was multiplied previously to get modulated signal) is divided by itself (carrier1) to extract the original signal (called demodulation).
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Alpha
3/9/2015 10:11:45 pm
Hi
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Mahathir Amirudin
1/12/2017 11:15:30 pm
Hello, for the FSK demodulation graph, I thought the space suppose to be at 0 bit while mark at 1 bit. Is it wrong coding or I myself misunderstanding the real thing about fsk thing ?
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