First of all, I'm new to DSP so excuse my simplified words. I'm testing the performance of a digital filter on a (partly) noncontinuous signal:
As you can see, the signal is not continuous at some points (like it is stopping and starting over again) When I apply the digital filter to it, I get this:
The filter shows ripples at the noncontinuous areas, then it starts to work again. Why does the filter show this ripple at the noncontinuous areas? How do I calculate it (to know the overshoot, etc.)?