A3-Digital Communication principles
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⌘ Summary
- radio wave propagation
- Electromagnetic signals
- Nyquist Theorem
- Signal/noise ratio
- Shannon Theorem
- Signal strength
⌘ Nyquist Theorem
- Shannon: If a function contains no frequencies higher than [cycles/s], it is completely determinded by giving its ordinates at serires of points spaced seconds apart
- band-limitation versus time-limitation
- Fourier transform
[source: Shannon, 1948]