Patent ID: 7292833
Filing Date: 2007-11-06
Classification: H01Q,H04B,H04R

Abstract:
1. A receiving system for a multi-sensor antenna, comprising: at least one set of channel filters for filtering signals X i (t, f) arranged to be received at different sensors of the antenna, said signals possibly including a desired signal (S at least one calculating arrangement for receiving either the sensor signals and aligning them in phase, or the signals filtered by the channel filters, said arrangement being arranged for (a) estimating the transfer function of an optimum filter (W(t, f), W k(t, f)) in a manner to minimize the squared difference between the antenna output signal filtered by said filter and the desired signal, (b) summing the signals (V i(t, f), Vi,k(t, f) i=1 . . . N) filtered by the channel filters, (c) deriving an antenna output signal Y(t, f), (d) statistically analyzing the frequency values of the transfer function, and (e) deriving an indication of the presence of a signal in a receiving zone in response to the statistically analyzed frequency values.