Hi Alizera, In the past we used a dedicated syncronisation unit:

https://cdn-content.qualisys.com/2020/03/PI_Camera_Sync_Unit.pdf

This is for a Qualisys system but I'm sure there are alternatives. Hope this helps.

Hi Alireza,

First, what is the type of motion capture system do you have? Most of them actually have their own synchronization box, which serve as trigger in or trigger out for other external device including IMU. However, if your IMU sensor is a standalone sensor without any base to connected, then you can try an option to synchronize it by using some movement that cause spike on IMU signal like jumping.

Hope this helps you