Clipping signals in FFT analysis can mislead by flattening sine waves, creating false harmonics, and obscuring true fault signatures.
Why & How Clipping Signals Can Mislead Your FFT Analysis
When a sensor or ADC clips the signal, the sine wave gets flattened.
🔊 In time-domain → smooth wave turns square-like.
📊 In frequency-domain (FFT) → extra false harmonics appear, hiding the real fault signature.