Path search circuit dividing a received signal into a plurality of FFT windows to reduce arithmetic operation processes for cross-correlation coefficients

摘要: A path search circuit wherein a received signal is divided with plurality of FFT windows to reduce arithmetic operation processing for cross-correlation coefficients disclosed. An interleave unit divides rxd into two 1 , 2 at one-chip intervals, and the sequences are picked out overlapped performed by units. cross power spectrum calculating determines spectra between after reference stored in storage unit. output averaged each window an averaging unit, IFFT The resulting rearranged order time deinterleave interpolated accuracy necessary detection timing interpolation