Performances of coherent and noncoherent DLL in AWGN channel
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We propose a new approach to study the performance of coherent and noncoherent delay lock loop in the AWGN channel. The analytical expression of the mean square tracking error is derived for the coherent scheme and compared to the noncoherent one. The impact of acquisition errors and the effect of the early late gate spacing are also investigated.
[1] D.J.R. van Nee. Reducing multipath tracking errors in spread-spectrum ranging systems , 1992 .
[2] Hyun-Seo Oh,et al. Coherent DLL code tracking and BER effect on QPSK demodulation in wideband DS-CDMA reverse link , 1998, VTC '98. 48th IEEE Vehicular Technology Conference. Pathway to Global Wireless Revolution (Cat. No.98CH36151).
[3] Riccardo De Gaudenzi,et al. Decision-directed coherent delay-lock tracking loop for DS-spread-spectrum signals , 1991, IEEE Trans. Commun..