Let me first describe my problem. I am having a signal which comprises acceleration signal(for 20s) followed by zero signal (for 10s) and again followed by acceleration signal(for 20s) and again followed by zero signal (for 10s) and this goes on. Now I am also simultaneously integrating the acceleration signal to get the velocity. Now the problem I am facing is that during the period of zero acceleration I get a non-zero constant value of velocity(as obtained from the last integration of non-zero acceleration) which I want to reset to zero for each periods of the zero acceleration signals. Is there any way of doing that? Please help me!!