This example shows how to detect the rising edge of a signal using the Detect Rise Nonnegative and Detect Rise Positive blocks.

With a fixed-step size of 0.25, this example illustrates the difference between the Detect Rise Nonnegative and Detect Rise Positive blocks. The Detect Rise Nonnegative block outputs true (1) at t=1 because the input signal increased from a negative value to a nonnegative value (0). The Detect Rise Positive block outputs true (1) at t=1.25 because the input signal increased from a nonpositive value (0) to a strictly positive value.