Spread Spectrum Communications. Originated in military communications Spread the signal over a band much wider than the signal bandwidth Advantages: Interference rejection and anti-jamming capability Multiple-access capability Multi-path diversity Mainly two types:
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Spread Spectrum Communications
Modulation and Demodulation
PSD of DS Spread Spectrum
Narrowband Interference Rejection
Example for demonstration
1 0 0 0 1 1 1 1 0 1 01 1 0 0