Receiver used in marker localization sensing system and tunable to marker frequency

摘要

A receiver for determining the location of a marker that is excited with an exciting waveform. A sensing array having coils is used to sense magnetic flux from the resonating marker. The coils provide inputs to the receiver. The receiver includes a correlation processor for analyzing the inputs in a coherent manner. Further, the receiver is adapted to tune to the resonant frequency of a marker.