Correlation vs Convolution

Interactive Digital Signal Processing Visualizer

Operation Mode:

Input Signal:

Kernel / Ref Signal:

Shift / Lag: 0

Integration at Lag 0: Σ (Input × Kernel) = 0.00

Key Concepts

Convolution Formula y[n] = Σ x[k]·h[n−k] (flip & slide)

Length Rule Output length = len(x) + len(h) − 1

Correlation vs Conv. Cross-correlation does NOT flip h. Convolution flips it. Same if h is symmetric.

Key Concepts

Convolution Formula y[n] = Σ x[k]·h[n−k] (flip & slide)

Length Rule Output length = len(x) + len(h) − 1

Correlation vs Conv. Cross-correlation does NOT flip h. Convolution flips it. Same if h is symmetric.

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