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Low Complexity Method for Spreading Sequence Estimation of DSSS signal in Non-Cooperative Communication Systems
cang liang,wang fuping *,Wang Zanji
Department of Electrical Engineering, Tsinghua University
*Correspondence author
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Funding: none
Opened online:18 December 2008
Accepted by: none
Citation: cang liang,wang fuping,Wang Zanji.Low Complexity Method for Spreading Sequence Estimation of DSSS signal in Non-Cooperative Communication Systems[OL]. [18 December 2008] http://en.paper.edu.cn/en_releasepaper/content/26731
 
 
It is a necessary step to estimate the spreading sequence of direct sequence spread spectrum (DSSS) signal for blind despreading and demodulation in non-cooperative communications. The article proposes two innovative and effective detection statistics to implement the synchronization and spreading sequence estimation procedure. The proposed algorithm also has a low computational complexity with only linear additions and modifications. Theoretical analysis and simulation results show that the algorithm performs quite well in low SNR environment, and is much better than all the existing typical algorithms with a comprehensive consideration both in performance and computational complexity.
Keywords:DSSS;detection statistic;low complexity
 
 
 

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