Signal theory
Signal theory is the theory of the engineering discipline of signal processing. It provides mathematical approaches for use in a wide range of applications. Fields as far apart as statistical physics and op-amp electronics share some of this material.High-level aspects include:
- Amplitude,
- phase,
- resonance,
- Q (Q for "quality", means the strength of a resonance),
- time constant (of a filter),
- great-signal and small-signal bandwidth,
- maximum output swing,
- noise floor.