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Signal Fidelity Explained


Signal Fidelity

100%
High Fidelity (Faithful Reproduction)

Fidelity measures how accurately the Output (Green) matches the Input (Dashed Gray). In communication systems, two things destroy fidelity:

  • Phase Shift: If the receiver is out of sync, the signal strength drops. At 90°, fidelity is 0% because the wave vanishes.
  • Noise: Random interference adds "jitter" to the wave, making it an unfaithful copy of the original.

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