Study on Blind Estimation of Weak DS-UWB Signals

Author

Zhang, Tianqi ; Gao, Xiangyun ; Yang, Liufei ; Dai, Shaosheng ; Jiang, Qingping

Author_Institution

Chongqing Key Lab. of Signal & Inf. Process. (CqKLS&IP), Chongqing Univ. of Posts & Telecommun. (CQUPT), Chongqing, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

In this paper, the signal model and expression in time domain of DS-UWB signal are introduced, and an approach using eigen-analysis of correlation matrix for DS-UWB signal is proposed to blindly estimate the PN sequence and several parameters in low SNR DS-UWB signal. Compared with the previous methods, both synchronization and PN sequence estimation can be realized simultaneously by the approach in this paper. Based on the theoretic analysis, experimental results show that this approach is very effective in lower SNR.

Keywords

eigenvalues and eigenfunctions; matrix algebra; spread spectrum communication; ultra wideband communication; PN sequence estimation; blind estimation; correlation matrix; eigen-analysis; weak DS-UWB signals; Algorithm design and analysis; Information processing; Laboratories; Parameter estimation; Radar tracking; Signal processing; Signal resolution; Signal to noise ratio; Spread spectrum radar; Ultra wideband technology;

fLanguage

English

Publisher

ieee

Conference_Titel

Wireless Communications, Networking and Mobile Computing, 2009. WiCom '09. 5th International Conference on

Conference_Location

Beijing

Print_ISBN

978-1-4244-3692-7

Electronic_ISBN

978-1-4244-3693-4

Type

conf

DOI

10.1109/WICOM.2009.5305365

Filename

5305365