| 摘要 |
An aspect of the invention is a signal processing method for correlating an N-bit received signal with an N-bit code word signal, wherein the method comprises steps of preprocessing said N-bit received signal and said N-bit code word signal, performing a Fourier transform (126) for said preprocessed signals, multiplying (130) said Fourier transformed preprocessed received signal with said Fourier transformed preprocessed code word signal, and performing inverse Fourier transform (140) to a product of said multiplication. The method is characterized in that said preprocessing comprises a step of resampling (123, 125; 135) at least one of said signals with N bits to a length of at least N+1 bits with interpolation means.
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