Graphical convolution of two signals

1. What is graphical convolution?
2. What is the convolution of two same signals?

What is graphical convolution?

It lets the user visualize and calculate how the convolution of two functions is determined - this is ofen refered to as graphical convoluiton. The tool consists of three graphs. Top graph: Two functions, h(t) (dashed red line) and f(t) (solid blue line) are plotted in the topmost graph.

What is the convolution of two same signals?

Convolution is a mathematical way of combining two signals to form a third signal. It is the single most important technique in Digital Signal Processing. Using the strategy of impulse decomposition, systems are described by a signal called the impulse response.