Itemploys random spreading sequences that are extracted from the information data.
然后从这种随机数据流中获得扩频序列。
CSK is proposed as a new modulation scheme, in which BCP is employed as spreading sequences.
互补序列键控(CSK)作为一种新的调制方式，采用二进制互补对(BCP)作为扩频序列。
Spreading sequences design is one of the key task in the direct-sequence spread spectrum communication systems.
扩频序列设计是直接序列扩频通信系统的关键课题之一。
This paper mainly discusses the generalized odd cross correlation of chaotic 4-phase spreading sequences with inequal length.
本文重点研究不等长四相混沌扩频序列的广义奇互相关性质。
The blind detection, parameters estimation and recovery of spreading sequences are the main contents of DS communication counter.
直扩通信对抗包括直扩信号的盲检测、参数估计和扩频码序列恢复等内容。
This paper propose one method of constructing direct spreading sequences based on one -dimensional chaotic maps with infinite collapse.
提出了一种基于一维无限折叠混沌映射的直接扩谱序列构造方法。
A general methodology for the design of optimal chaotic spreading sequences by using chaotic sequences filtered by digital IIR filter is provided.
并提出了通用的最佳混沌扩频序列设计方法，即利用数字IIR滤波器滤波混沌序列产生最佳混沌扩频序列。
In order to generate the optimal spreading sequences for asynchronous DS-CDMA, some optimizing criteria for selecting chaotic binary sequence were proposed.
为了获得异步ds - CD MA系统的最优扩谱序列，给出了一套用来选取混沌二值序列的优化准则。
Algorithms based on DMMSE (Difference minimum mean square error) criterion of adaptive multi users detector for short spreading sequences DS CDMA systems is proposed.
给出了基于差分最小均方误差(DMMSE)准则的短扩频序列ds- CD MA自适应多用户检测算法。
In order to expand the group of ades on communication system with asynchronous code division multiaddress (CDMA), the possibility of using chaotic spreading sequences was researched.
为了增加异步码分多址通信系统的可用码组，研究了在该系统中使用混沌扩频序列的可能性。
The theoretical analysis shows that the chaotic sequences serve as spreading codes for A-CDMA.
理论分析表明，该混沌序列具有较理想的A -CD MA扩频码性能。
Blind multiuser detection technology can detect the exptected user with only needing the spreading codes and without train sequences and without information of users.
然而频繁的发送训练序列严重制约了多用户检测技术的实时性和实用性；
The Devonian sequences are distributed in Tuoputai industrial zone in Tahe area, where the sand bodies are in general spreading nearly in SN, thick in NW and thin in se.
塔河地区泥盆系地层分布在托浦台工区，研究区砂体总体上近南北向展布，北西厚南东薄。
The Devonian sequences are distributed in Tuoputai industrial zone in Tahe area, where the sand bodies are in general spreading nearly in SN, thick in NW and thin in se.
塔河地区泥盆系地层分布在托浦台工区，研究区砂体总体上近南北向展布，北西厚南东薄。
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