| 摘要 |
A communication receiving unit for the suppression of noise and jamming signals, which receiving unit comprises: a plurality of antenna elements (1A-1N); adaptive weighting filters (7A,a, . . . , 7N,k+1) connected thereto; a combination circuit (4) connected to the weighting filters (7A,a, . . . , 7N,k+1); a detector (5) connected to the combination circuit (4) suited to generate a replica (d) of the information-supplying carrier signal for demodulating the signal (y) of the combination circuit (4) to the information-related frequency band; and a unit (8) for adjusting the weighting filters (7A,a, . . . , 7N,k+1). The detector (5) comprises a circuit (40, 41) for determining a time-averaged power value (W1) concerning the signal (y) from the combination circuit (4), and a circuit (42, 43) for determining a time-averaged value (W2) of the cross-correlation concerning the output signal (y) and the replica (d). The adjusting unit (8) is designed for generating modified adjusting signals on the basis of the supplied time-averaged values (W1 and W2) for a more accurate adjustment of the weighting filters (7A,a, . . . , 7N,k+1). |
