Patent ID: 7047043
Filing Date: 2006-05-16
Classification: H04B

Abstract:
1. A communication signal receiver comprising: an antenna array having a plurality of M antenna elements, each of the M antenna elements receiving a respective communication signal, and each communication signal comprising a mixture of K source signals from a plurality of K communication signal sources; a multiplexer coupled to the antenna array for time multiplexing the M communication signals received by the M antenna elements into a single multiplexed signal; a frequency down converter for converting the multiplexed signal to a baseband frequency signal; an analog to digital converter configured to sample the baseband frequency signal to produce a digital multiplexed signal comprising a series of samples; an interpolator configured to interpolate consecutive samples in the digital multiplexed signal corresponding to each communication signal to generate respective interpolated digital signals, and a signal separation network configured to separate the K source signals from the interpolated digital signals; wherein the signal separation network comprises a blind signal separation unit.