Paper Info
Title
Dual-folding based rapid search method for long PN-code acquisition
Abstract
For long PN-code, rapid acquisition is difficult due to large search space. To speed up the search process, extended replica folding acquisition search technique (XFAST), which directly reduces the code phases to be searched by folding local signal, provides an efficient approach to rapid acquisition. Nevertheless, after folding the correlation properties of PNcode are degraded; hence, the detection performance of XFAST to weak signal is worse than that of nonfolding methods. To improve the detection performance, a dual-folding acquisition method (DF) is proposed. By folding both incoming signal and local signal, DF extends coherent integration time to enhance detection performance and indirectly reduce mean acquisition time. Numerical results demonstrate the enhancement of the proposed method with respect to other methods such as serial search (SS), zero-padding method (ZP), and XFAST.
Year
DOI
Venue
2008
10.1109/T-WC.2008.071130
IEEE Transactions on Wireless Communications
Keywords
Field
DocType
large search space,dual-folding acquisition method,search technique,rapid acquisition,rapid search method,local signal,extended replica folding acquisition,search process,incoming signal,mean acquisition time,long pn-code acquisition,detection performance,degradation,indexes,signal to noise ratio,data acquisition,search space,spread spectrum communication,time frequency analysis,manganese,noise,spread spectrum techniques,navigation,demodulation,pn code,testing,transmitters,modulation,signal processing,correlation
Pseudorandom noise,Replica,Search algorithm,Telecommunications,Computer science,Data acquisition,Signal-to-noise ratio,Algorithm,Real-time computing,Modulation,Time–frequency analysis,Spread spectrum
Journal
Volume
Issue
ISSN
7
12
1536-1276
Citations 
PageRank 
References 
15
1.50
11
Authors
4
Name
Order
Citations
PageRank
Hong Li1356.76
X. W. Cui221926.61
Mingquan Lu312230.09
Zhenming Feng4839.77