spectrogram.md

(Yellow‑zone draft)

Spectrogram#

Spectrograms visualize frequency content over time. Their behavior is useful but heavily dependent on windowing and sampling assumptions.

Dimensional Core (SET)#

• Spin: not relevant
• Elec: digital processing
• Temp: not relevant

Why Yellow‑Zone#

Spectrograms are model‑dependent visualizations, not direct measurements.

Regime Notes#

• pos‑regime: steady signals
• Q‑regime: transients, noise
• neg‑regime: aliasing, undersampling

Alignment Notes#

Needs explicit notes on windowing and sampling limits.