A method for enhanced Capon beamforming includes the steps of providing a sensor array including a plurality of sensor elements where an array steering vector corresponding to a signal of interest is unknown. The present system and method provide a distinct advantage in that a local printerscanner is employed to perform data acquisition to a central server or other system, etc. When inserting a new record, one of the records in the binary tree data structure is identified as an enclosing record having an associated record data range that encloses record data of the new record.