Which equation represents the linearity property of convolution?

Understand the Problem

The question is asking to identify which of the provided equations correctly represents the linearity property of convolution in the context of mathematical principles related to signal processing and mathematics.

Answer

The correct equation must express the linearity property $a \cdot (f * g)(t) + b \cdot (h * g)(t) = (a \cdot f + b \cdot h) * g(t)$.

Steps to Solve

Identify the Linear Operators Convolution is a linear operation. Therefore, if $f(t)$ is a signal and $g(t)$ is a filter, the convolution of a weighted sum of signals should equal the weighted sum of the convolutions.
State the Linearity Property of Convolution The linearity property of convolution states that for two signals $f(t)$ and $g(t)$, and constants $a$ and $b$, the following equation holds: $$ a \cdot (f * g)(t) + b \cdot (h * g)(t) = (a \cdot f + b \cdot h) * g(t) $$ where $(f * g)(t)$ denotes the convolution of $f$ and $g$.
Select the Correct Equation Look for an equation among the options provided that aligns with the stated linearity property. If the equation does not reflect the relationship shown, it is not correct.
Verify by Expansion Expand both sides of the equation chosen from the options to confirm if they match using the definition of convolution: $$ (f * g)(t) = \int f(\tau)g(t - \tau)d\tau $$

The correct answer will depend on the options given. Ensure that the selected equation satisfies the condition of linearity as described.

More Information

The linearity property is essential in fields like signal processing because it allows us to analyze complex system behavior by breaking it down into simpler components.

Tips

Choosing an equation that does not correctly represent the property of linearity or ignoring the need for proper weighting factors can lead to incorrect conclusions. Always verify the structure of the equation against the expected linearity formulation.

Thank you for voting!