Systems and methods for guiding a sensor to a location of a propagating wave source. The methods comprise: receiving, by the computing device, a plurality of signals generated by a plurality of electrodes of the sensor while the sensor resides at the first location in the object； processing, by the computing device, the plurality of signals to determine coordinates of an estimated location of the propagating wave source relative to the first location at which the sensor resides； and providing a visual aid facilitating sensor movement by plotting a dot on a grid overlaid on top of an object image displayed by the computing device.
