A Detection Method of WCDMA Signal Based on the Quadratic Fourth-Order Moment Chip at Lower SNR

Author

Pu Junjie ; Zhao Zhijin

Author_Institution

Sch. of Telecommun., Hangzhou Dianzi Univ., Hangzhou, China

fYear

2009

fDate

24-26 Sept. 2009

Firstpage

1

Lastpage

4

Abstract

Wideband code division multiple access signal is non-periodic signal, which always floods in the background noise, bringing difficulties to the signal´s reconnaissance. In order to detecting this signal, the detection method based on the quadratic fourth-order moment chip of WCDMA is proposed, and the amount of calculation is reduced by using fast calculation method about fourth-order moment chip. Experimental results show that the detection performance of the method is better than that of the double frequency method, spectrum-reprocessing method. When the false alarm probability is 1%, the detection probability of presented methods reaches above 90% at SNR-21 dB.

Keywords

code division multiple access; digital signal processing chips; signal detection; WCDMA signal detection method; quadratic fourth-order moment chip; wideband code division multiple access signal; Background noise; Binary phase shift keying; Correlation; Frequency; Multiaccess communication; Parameter estimation; Signal detection; Signal to noise ratio; Spread spectrum communication; Telecommunication computing;

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.2009.5305072

Filename

5305072