Patent ID: 7324582
Filing Date: 2008-01-29
Classification: H04B

Abstract:
1. A system for the reception and despreading of a direct-sequence spread-spectrum (DSSS) signal, said system comprising: an antenna array configured to receive said DSSS signal and comprising a plurality of antenna elements; a preprocessor coupled to said antenna array and configured to preprocess said DSSS signal in the time domain to produce a time-domain (TD) DSSS signal stream; a time-to-frequency-domain (TFD) transformer coupled to said preprocessor and configured to transform said TD DSSS signal stream from the time domain to the frequency domain to produce a frequency-domain (FD) DSSS signal stream; a beam former coupled to said TFD transformer, configured to form a reception beam in said DSSS signal, and configured to produce a beamed signal stream in the frequency domain from said FD DSSS signal stream; a despreader coupled to said beam former and configured to despread said beamed signal stream in the frequency domain to produce an FD despread signal stream; and a frequency-to-time-domain (FTD) transformer coupled to said despreader and configured to transform said FD despread signal stream from the frequency domain to the time domain to produce a received signal stream; and wherein: