DS-SS code acquisition based on simultaneous search and verification

被引：0

作者：

Chang, HS ^{[1
]}

Park, YW ^{[1
]}

Lee, YH ^{[1
]}

机构：

[1] Korea Adv Inst Sci & Technol, Dept Elect Engn, Taejon 305701, South Korea

来源：

48TH IEEE VEHICULAR TECHNOLOGY CONFERENCE, VOLS 1-3 | 1998年

关键词：

D O I：

暂无

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：

We propose a two-dwell acquisition system with a serial search that operates simultaneously with verification. This system employs two correlation blocks: one for search and the other for verification. The search block continuously searches for the time instants at which the partial correlation value exceeds a time-varying threshold, and at those instants, the verification block is reset and reinitiated until code acquisition is declared by the verification. The time-varying threshold is updated depending on the partial correlation. The mean acquisition time for AWGN and multiple access environment is evaluated by computer simulation and is compared with that of a two dwell system which alternates search and verification modes. The results indicate that the proposed system can perform much better than the conventional one.

引用

页码：2493 / 2496

页数：4

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