Title :
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
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;
Conference_Titel :
Neural Networks and Signal Processing, 2003. Proceedings of the 2003 International Conference on
Conference_Location :
Nanjing
Print_ISBN :
0-7803-7702-8
DOI :
10.1109/ICNNSP.2003.1281184
