| 摘要 |
The disclosed methods and systems provide for accurate demodulation of such signals in multipath, time-dispersion environments. Single signal or multiple signal demodulation, with or without taking intersymbol interference into account can be accomplished. According to the present invention a method for demodulating at least one CDMA signal from a received signal comprises the steps of: producing data samples from said received signal, correlating said data samples with at least one known signature sequence, selecting a predetermined number of said correlations, estimating multipath channel tap coefficients, forming real parts of products of said selected correlations with said multipath channel tap coefficients, and combining said real parts of said products to determine at least one transmitted information symbol sequence. <IMAGE>
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