Patent ID: 7847731

Claim:
A method for the operation of an antenna group ( 1 ) having M≧ 2 transmitters ( 2 ) and N≧2 receivers ( 3 ), in which a coherent transmit signal is transmitted in a transmit-receive-cycle via each of the M transmitters ( 2 ) into an area to be monitored and a coherent receive signal from the area is recorded by each of the N receivers ( 3 ) for each transmit signal, wherein M·N receive signals are obtained, and to each of the receive signals, a combination of the respectively transmitting transmitter ( 2 ) and the respectively receiving receiver ( 3 ) is allocated, and in which the M·N receive signals are processed by means of digital beamforming to obtain spatial information about the objects in the area to be monitored, characterized in that each of the M·N receive signals is multiplied during processing by an amplitude factor, which is individually allocated to the respective combination of transmitter ( 2 ) and receiver ( 3 ), and which causes an increase of a signal dynamic range at the digital beamforming.