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	A simple and efficient timing estimation algorithm for DS-CDMA systems
	Luo, Wu ; Lu, Luxi
	2006
英文摘要	In traditional feedback structure of Direct Sequence Spread Spectrum (DS-SS) receiver, delay lock loop is a prevailing approach to estimate the timing error. However, in burst communication, it is hard for DLL to be in transient state or lock the signal with high accuracy. In this paper, an efficient feed-forward PN code timing recovery scheme is proposed for DS-SS systems. The received signal after the chip-matched filter is two times over-sampled. The characteristics of DS-SS signal are explored to make the synchronization scheme efficient and simple in such a low sampling rate. Three sets of correlation values with different timing offsets are stored to estimate the code timing and carrier phase error. With very low computational complexity, the proposed scheme can make the performance approaches to the DS-SS systems with ideal synchronization in an AWGN channel.; EI; 0
语种	英语
DOI标识	10.1109/ICCT.2006.341867
内容类型	其他
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/327965]
专题	信息科学技术学院
推荐引用方式 GB/T 7714	Luo, Wu,Lu, Luxi. A simple and efficient timing estimation algorithm for DS-CDMA systems. 2006-01-01.

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