AWGN Channel
Basic channel model, thermal noise scaling with bandwidth
Real-World Applications
Deep space communications (like Mars rovers) are mainly limited by thermal noise (AWGN). Benchmark performance tests for all communication systems (like receiver sensitivity tests) are conducted under AWGN assumptions.
Experiment Steps
- Thermal Noise: N0 = kT ≈ -174 dBm/Hz
- Noise Power: Pn = N0 + 10log(B) dBm
- SNR: SNR = Ps/Pn, determines signal quality
- Shannon Capacity: C = B × log2(1+SNR) bps
Simulation Experiment
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Parameters(Real-time)
Signal Freq100 Hz
Channel BW10 MHz
SNR20 dB
N₀: -174 dBm/HzPn: -104.0 dBmPs: -84.0 dBmShannon Capacity C = 66.58 Mbps
Functions: models.channel.shannonCapacity(), models.channel.addNoise()