How to synchronise two signal with different sampling frequency?
1- you can up-sample the lower frequency or down-sample the higher one. 2- you can use 1-D data interpolation . If the two bio signals are correlated, find a flag or feature shared between them to help you synchronize the signals. After that down sample the high frequency signal by the half and you are done.
What is signal synchronization?
Traffic Signal Synchronization is an engineering technique of matching traffic signal green lights at successive intersections to maximize passage of motorists along a corridor. Traffic signal synchronization allows for minimal stopping which helps reduce travel times.