Computationally parsimonious forward link receiver for DS-CDMA systems and method for same

摘要

A receiver (10) has been provided, with a pre-whitening filter (18), to improve the probability of recovering a received signal in the presence of colored noise. Colored noise can be multipath or transmission signals to other receivers in the same spectral bandpass. The receiver system uses colored noise statistics to provide an optimal estimation in the despreading of the transmitted information. Auxiliary systems in the receiver (10) cancel the pilot, or system acquisition symbols, improving even further the probability or recovering information in the despreading of transmitted signal. A method of pre-whitening a signal received in the presence of colored noise is also provided including the step of selectively weighting the despread received signal.