Base on the encoding table and the diagram above: 1. Draw the constellation diag

Question

Base on the encoding table and the diagram above:

1. Draw the constellation diagram for the encoding

2. Draw the wave form for each symbol.

3. Demodulate the given signal (i.e, give the bit sequence that it represents).

MODULATION B ENCODING TABLE: Symbol Phase Amplitude Symbol Phase Amplitude Symbol Phase Amplitude Symbol Phase Amplitude (H)()1?45.00" 2.83 0010 63.43.2.24 0011 26.57 2.24 MODULATED SIGNAL: 00030 1.A1 010 ? 135.00° 2.83 0110 3 2.24 1000 225.00° 1.41 225.00° 2.83 1010 243.43° 2.24 1011 206.57° 2.24 1110 1111 296.57 2.24

Explanation / Answer

The Given type of modulation is PM i.e. Phase Modulation.

Because there are variations in the instataneous phase of carrier signal.

So we see that in the encoding modulated Signal there are variations in wave diagram.

But we know that phase modulation is closely related to frequency modulation that leads to create quadrature amplitude modulation.

so we can say that the given type of encoding is combination of Phase Modulation and Frequency Modulation.

if there is any query please ask in comments....

if there is any query please ask in comments...

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