Patent ID: 7372402

Claim:
A method for enhancing the measuring accuracy in an antenna array comprising a number of antenna elements, the method comprising; a)—receiving analog signals on all antenna elements of the antenna array at a first time t 1 ; producing first values for a first radiation diagram from values in the signals from the first time t 1 , and; finding a maximum point for the first values, b)—switching off or reducing the signal from one interadjacent antenna element at a second time (t 2 ); receiving analog signals on all antenna elements except from the one switched off or reduced antenna element, and; producing second values for a second radiation diagram from values in the signals from the second time (t 2 ); c)—using the first values to calculate a first range referring to the second radiation diagram, outside which the first range grating lobes will appear in the second radiation diagram; rejecting all values outside the first range, and; finding a maximum point for the second values.