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Summary of Chapter II 1.Data Transmission
Step 1: what we have Analog signal Carry wave (carrier) Received singal ??
Step 2 After sampling and quantization, we obtain 1 2 3 2 1 = 100 010 110 010 100 (three-level coding is applied)
Step 3 Coding with self-clocking (Manchester code) 10 01 01 01 10 01 10 10 01 01 10 01 10 01 01
Step 4: modulation (ASK)
Step 5: send over the channel
Step 6: Demodulation 10 01 01 01 10 01 10 10 01 01 10 01 10 01 01
Step 7: Decode 1 0 0 0 1 0 1 1 0 0 1 0 1 0 0 12 3 2 1
Step 8: Convert back to analog signals (assuming our sampling is fast enough) 12 3 2 1
2. Fourier transform (a light touch) Time domain Frequency domain
3. Probability: mean, variance, normal distribution
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