Patent ID: 7626542

Claim:
A signal processing method, comprising: (a) an antenna receiving a composite signal (y), wherein y includes, from each of a plurality of signaling sources, at least one corresponding wireless signal comprising information; (b) obtaining, for each selected wireless signal in the composite signal and by a logic circuit and/or processor, signal modeling data; (c) based on the signal modeling data for each selected wireless signal, determining, by a logic circuit and/or processor, a respective model, each respective model containing both in phase and quadrature components of the corresponding selected wireless signal; (d) performing, by a logic circuit and/or processor, a projection of a representation of y onto a detection subspace to remove all of at least one interfering wireless signal (s 0 ) from at least one known interfering signaling source, the detection subspace being orthogonal to a complex interference subspace spanning a representation of the at least one interfering signal s 0 of the corresponding wireless signals, wherein said interference subspace is determined using said respective signal modeling data for the at least one interfering signal s 0 , wherein said detection subspace is non-orthogonal and non-equivalent to a signal-of-interest subspace spanning a representation of another signal (h O ) of said corresponding wireless signals, and wherein step (d) is performed without estimating a phase of one or more of the at least one interfering wireless signal s 0 ; (e) using, by a logic circuit and/or processor, a result from said step of performing for acquiring said another corresponding signal h O ; and (f) after acquiring the signal h O , determining, by a logic circuit and/or processor, the information from the signal h O .