The present methods and systems include aligning at least two sensors with one or more known locations, selecting at least two of the at least two sensors, electrically driving the probe, based on signals received by the selected sensors, determining whether the probe is aligned with the known location(s), and, optionally adjusting the probe position based on the determination. The methods and systems also include repeatedly returning to electrically driving and positioning the probe until the probe is aligned with the selected sensors, and/or repeatedly returning to selecting at least two of the at least two sensors. The relative position of the probe with respect to the selected sensors may also be determined.