A new analysis of matched filter pseudo-noise code acquisition for direct sequence spread spectrum system

被引:0
作者
Sheen, WH
Tzeng, JK
Tzou, CK
机构
来源
IEEE ISSSTA '96 - IEEE FOURTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES & APPLICATIONS, PROCEEDINGS, VOLS 1-3 | 1996年
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中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Rapid Pseudo-Noise (PN) code acquisition with matched filter correlators has been very popular in direct-sequence spread spectrum systems. Convention-dependent. However, there may be strong correlations ally, the analysis of this acquisition method is based on the assumption that the detections between cells are in-between cell detections for the case that the cell size is less than a chip duration. In this paper, the mean acquisition time performance of the acquisition method is analyzed with the cell correlations being taken into account. Numerical results show that depending on the threshold value and other system parameters the effect of cell correlations may be over 20% of the mean acquisition time for signal to noise ratios of practical interest. The analytical results are substantiated by using computer simulations.
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页码:151 / 155
页数:5
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