零相关

本文着重讨论了使用具有零相关区的GO序列为系统带来的性能改善。

This paper concentrates on the discussion of the performance improvement brought by the GO sequences which possess zero correlation zone .

基于零相关扩频码的UWB系统信道估计方法

A method of channel estimation based on zero correlation duration code in UWB system

CDMA系统的高效率双值零相关序列集的开发方法

High efficiency developing method on binary sequences with zero-correlation duration for CDMA system

仿真结果表明，基于零相关窗码的VBLAST的多码CDMA系统容量远高于基于正交码的VBLAST的多码CDMA系统容量。

It shows that the capacity of V-BLAST-CDMA based on LS code is higher than that based on Walsh code .

LAS码由于具有“零相关窗”或“干扰自由窗”，目前受到高度重视。

LAS codes are highly valued currently for their " ZCZ " or " IFW " .

在采用多用户检测时它们的容量几乎相同。由于具有零相关窗特性，对于LS码而言这两种方法是等效的。

For the property of zero-correlated windows , the two algorithms are equivalent for CDMA system based on LS code .

研究结果表明：该序列族存在一类具有零相关区的子序列族，适用于准同步CDMA通信系统；

The research results show that among the proposed sequences , there is a subclass of sequences with zero correlation zone which can be used in quasi-synchronous CDMA systems ;

在扩频码设计中，通过构造零相关窗码可以消除MAI和ISI，从而提高系统容量。

In spreading code design , MAI and ISI are removed by constructing spreading codes with zero correlation window , which increases system capacity .

针对准同步CDMA通信系统，只要求扩频序列在同步误差范围内（一个或几个码片周期）具有和接近理想相关特性，提出了低/零相关区。

Aiming at CDMA communication system , spreading sequence has perfect correlation properties only within the bound of synchronized error , Low / Zero correlation zone ( LCZ / ZCZ ) was proposed .

在近似同步CDMA系统中，如果系统的同步误差能够控制在耳形零相关窗范围内，该序列对理论上能够完全消除多径及多址干扰。

In asynchronous CDMA communication systems , these sequence pairs appear to be completely removing inter-symbol interference and multi-user interference if the maximum delay is shorter than the length of the " Ear Windows " .

首先，论文针对隐含序列信道估计方案中直流偏移量对信道估计性能的影响，提出了基于平衡ZCZ（零相关区）隐含训练序列的无直流偏移MIMO信道估计方案。

In this thesis , a new MIMO channel estimate scheme based on zero correlation zone ( ZCZ ) implicit training sequences with balance property is proposed .

垂直分层空时结构（VBLAST）与多码码分多址（CDMA）结合可显著提高通信系统的传输速率，而基于零相关窗互补码（LS码）的码分多址系统具有良好特性。

Combining vertical bell laboratories layered space-time ( V-BLAST ) and multi-code code division multiple access ( CDMA ) is an effective way to improve data speed , a good communication character can be obtained based on spreading codes with zero-correlation-window .

基本LS（linkspacecode）码具有零相关窗（IFW）且被用于传统大区域同步码分多址系统（LAS-CDMA），但其零相关窗的分布是不均匀的。

Basic link space code ( LS ) code has interference free window ( IFW ) and is used by traditional large area synchronous-code division multiple access ( LAS-CDMA ) system , but this IFW is not uniformly distributed .

LAS序列的相关特性不仅体现在相关函数副峰值比较小，而且还因为其具有一个宽度很大的零相关窗，这是能够应用于准同步系统中的决定因素。

The excellent correlation characteristics is reflected not only in the relatively small hump , but also because it has a wider zero correlation window , which is quasi-synchronous system can be used in the determining factor .

LAS-CDMA技术通过构造具有零相关窗的扩频码，克服了传统CDMA技术的缺陷，工程实现简单，系统容量大，具有广阔的应用前景。

Through constructing spreading codes with zero correlation windows , LAS-CDMA technology gets over the drawback of traditional CDMA technology . Compared with traditional CDMA system , LAS-CDMA system has a bigger system capacity with a simpler engineering implementation .

对于准同步系统而言，零相关区（ZCZ）序列经常被用作扩频序列，以此来消除系统中的互道干扰和减小多径干扰。

In quasi-synchronous code-division multiple-access ( QS-CDMA ) systems , zero correlation zone ( ZCZ ) sequences are used as the spreading sequence in order to cancel the co-channel interference and reduce the multipath interference .

此外，利用序列乘积的技巧，基于广义Chirp-like序列族，本文得到了两类新型实现简单的渐进最佳多相零相关区扩频序列。

Moreover , by employing the product technique , based on the generalized Chirp-like sequence set , two new classes of approximately optimal polyphase sequences with zero correlation zone can be easily generated .

在准同步CDMA通信系统中，对所采用扩频地址码的要求是在同步误差范围内（零时延附近）具有理想的相关特性，零相关区（ZCZ）序列就是能够满足这样要求的序列。

In the quasi-synchronous CDMA system , the request to adopt the spreading sequence is that the sequence should have perfect correlation properties in the synchronous error ( near the zero time delay ), the zero-correlation zone ( ZCZ ) sequence is just fit for the need .

为了设计出载波间隔只有码片周期倒数一半的多载波直接扩频系统，提出了一类分组零相关窗（ZCW）地址码。

A novel type of spreading access codes with set-wise zero correlation window ( ZCW ) is proposed for minimum orthogonal frequency shift multicarrier direct spread code division multiple access ( CDMA ) system in which the carrier gap is half of the reciprocal of the chip cycle .

最佳屏蔽二进序列偶在低/零相关区中的应用研究

Research of perfect punctured binary sequence pair in LCZ / ZCZ

零相关区序列的交织构造

Construction of Sequences with Zero Correlation Zone Based on Interleaved Technique

关于零相关窗互补码理论界的几点讨论

A discussion on theoretical limits of zero correlation window complementary codes

一类相互正交的零相关区序列集的构造

Construction of Mutually Orthogonal Sets of Zero Correlation Zone Sequences

用零相关相位板匀滑散斑的理论研究

Theoretic Study of Smoothing Speckles Using Zero-Correlation Phase Plate

零相关位相板准远场应用的数值研究

Numerical investigation of quasi-far-field application of zero-correlation phase plate

基于进化策略的实数域准零相关区序列生成算法

Algorithm for real number space quasi-zero correlation zone sequences based on evolution strategy

应用遗传算法优化低/零相关区序列偶

The Optimization of Sequence Pairs with Low / Zero Correlation Zone Using Genetic Algorithms

具有零相关窗互补地址码的设计

On Zero Correlation Window Complementary Access Code Design

一类由交织方式构造的零相关区序列偶集

A class of sequence pairs set with zero correlation zone based on interleaving technique

一种新型零相关区序列偶集合

A novel zero correlation zone sequence pairs set