Blind estimation of direct-sequence spread spectrum m-sequence chip codes

被引：0
|
作者：
Hill, PCJ [1 ]
Ridley, ME [1 ]
机构：
[1] Cranfield Univ, Royal Mil Coll Sci, Dept Informat & Simulat, DoIS, Swindon SN6 8LA, Wilts, England
来源：
2000 IEEE SIXTH INTERNATIONAL SYMPOSIUM ON SPREAD SPECTRUM TECHNIQUES AND APPLICATIONS, PROCEEDINGS, VOL 1 AND 2: COMMUNICATIONS FOR A NEW MILLENNIUM | 2000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：
The Massey algorithm for breaking cryptographic codes based on linear feedback shift register (LFSR) generators can also be used to detect pseudonoise (PN) chip-code sequences in direct-sequence spread spectrum (DS/SS) signals from short intercepted snapshots in low-noise channels. The algorithmic process has been extended in order to estimate DS/SS m-sequence codes of unknown order by solving for the LFSR tap sets over multiple windows using majority-vote logic. The effects on performance of random chip errors, digital modulation, and multiple code schemes, such as code-division (CDMA) and Gold sequences, have been investigated.
引用
收藏
页码：305 / 309
页数：5
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