Soft signal recognition and signature code acquisition with automatic frequency control in DS-SS systems

Author

Cheng, Yunpeng ; Wang, Jinlong

Author_Institution

Mobile Commun. Res. Sect., Inst. of Commun. Eng., Nanjing, China

Volume

2

fYear

2003

fDate

14-17 Dec. 2003

Firstpage

1591

Abstract

A novel signal recognition and signature code acquisition (SR/CA) method is proposed for DS-SS systems with frequency offset. The disadvantage of single decision threshold is pointed out for the existed SR/CA method via thoroughly analyzing the effect of frequency offset. The presented new method, which is called soft SR/CA, adopts double decision thresholds and automatic frequency control loop. The performance analysis and double thresholds set criterion are also discussed. Numerical results show that soft SR/CA method provides better detection performance, while false alarm probability hardly increases.

Keywords

automatic frequency control; signal detection; signal processing; spread spectrum communication; threshold logic; automatic frequency control; direct sequence spread spectrum; double decision thresholds; false alarm probability; frequency offset; signature code acquisition; single decision thresholds; soft signal recognition; Automatic frequency control; Communication system control; Control systems; Frequency estimation; Mobile communication; Performance analysis; Spread spectrum communication; Strontium; Testing; Uncertainty;

fLanguage

English

Publisher

ieee

Conference_Titel

Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on

Conference_Location

Nanjing

Print_ISBN

0-7803-7702-8

Type

conf

DOI

10.1109/ICNNSP.2003.1281184

Filename

1281184