1、

according to hypothesis about the implementation of multi-user signal detector with continuous hopfield neural network a kind of hopfield-based multi-user signal detector for synchronous ds/ cdma ( direct sequence code division multiple access) system has been constructed.

用连续Hopfield神经网络实现CDMA通信系统中多用户信号检测的设想,并针对同步CDMA系统构造了基于连续Hopfield神经网络的用户信号检测器。

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2、

based on the information of sequence code, it is generated with generalized rademacher function and the method of rotate right and generalized shift copy respectively. based on matrix block copy, it is generated with kronecker product.

基于序码信息,分别利用广义Rademacher函数和循环右移及广义平移复制方法进行构造;基于矩阵的块复制技术,利用Kronecker积进行构造。

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3、

direct sequence code division multiple access ( ds-cdma) signals have found wide applications in military and civil communications, which makes the non-cooperative reception of ds-cdma signals of great significance.

直接序列扩频码分多址(DS-CDMA)信号在军事和民用通信中有着广泛的应用,研究DS-CDMA信号的非合作接收有重要意义。

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4、

this article proposes a new direction of arrival ( doa) estimation algorithm based on multiuser decorrelator with an antenna array used in the base station of direct sequence code division multiple access ( ds/ cdma) system.

以直接序列码分多址(DS/CDMA)系统中的天线阵为背景,讨论了一种新的基于多用户去相关的波达方向(DOA)估计方法。

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5、

in direct sequence code division multiple access ( ds-cdma) communications, blind signal detection and interference cancellation are the important methods to increase system capacities.

在直扩码分多址(DS-CDMA)通信中,盲信号检测及干扰抑制技术是增加系统容量的重要手段。

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6、

The performance of smart antenna in DS/ CDMA ( direct sequence/ code division multiple access) systems is investigated when there are mutual coupling and/ or excitation error which is compared with that in ideal situations.

在考虑阵元间耦合和激励误差的情况下,讨论DS CDMA(Direct Sequence Code Division Multiple Access)系统中,智能天线的波束形成结果,并与理想情况进行比较。

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7、

the feasibility criterion of power control in interference-limited direct sequence code division multiple access ( ds-cdma) systems is investigated.

研究了直接扩频码分多址(DS-CDMA)干扰受限系统的功率分配的可行性问题。

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8、

based on the elementary density function of a second order polynomial, a class of second order continuity chip pulses in direct sequence code division multiple access ( ds-cdma) systems was proposed.

基于用二阶多项式表示的基本谱密度函数,提出直扩码分多址(DS-CDMA)系统中一类带限码片波形&二阶连续脉冲。

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10、

multicarrier direct sequence code division multi-access ( ds-cdma) is a combination of orthogonal frequency division multiplexing ( ofdm) modulation and code division multiaccess ( cdma) multiple access schemes.

多载波直接扩频序列码分多址(DS-CDMA)是一种结合正交频分复用(OFDM)的调制方式和DS-CDMA的多址方式而产生的宽带CDMA传输方式。

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11、

The theory and algorithm for shift sequence code is expounded.

阐述了位移连续码的编码理论及算法。

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12、

the problem of signal processing for direct sequence code division multiple access ( ds cdma) signal over multipath frequency selective mobile channels is considered. a new blind receiver is proposed.

本文研究多径频率选择性衰落信道下直接序列扩频码分多址(DS CDMA)信号的处理问题,提出了一种新型的盲接收机。

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13、

The Mutational Function of Molecular Sequence and the Coding Rule of Genetic Code

分子序列的突变危险性与遗传密码的编码规则

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14、

Entropy-based divergence measures have provided an impelling tool in evaluating sequence complexity, predicting CpG island, and detecting borders between coding and non-coding DNA regions etc.

在分析DNA序列复杂度、预测基因编码区和非编码的DNA边界识别等问题中,以熵为基础构造的离散量度量提供了一种强有力的工具。

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15、

Then the key technologies of air interface are put forward, including the direct sequence spread spectrum, full-duplex, time-division multiple access, code-division multiple access, error control, mobility management and data communication protocol.

然后分析了无线数据平台使用的技术:直接序列扩频、全双工、时分复用多址、码分复用多址、差错控制、移动性管理、数据通信协议;

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16、

The require of address code in project is that the sequence has acuity auto-correlation and the cross-correlation is near to zero.

由于工程上对地址码的要求是必须具有尖锐的自相关函数,而互相关函数接近于零。

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17、

The front-end processing lexical analysis, parsing and syntax-directed translation, final result set of front-end processing; each element to the back-end through processing front-end result set, the final target instruction code sequence.

前端通常处理词法分析、语法分析和语法制导翻译,最终得到前端处理结果集,后端则通过处理前端结果集中的每一个元素,最终得到目标指令序列代码。

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18、

Many studies show codon usage in protein-coding sequence is relevant to tertiary structure of the protein.

很多研究表明蛋白质编码序列中密码子的选择和蛋白质结构相关。

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19、

Sequence analysis of 5' non-coding region of hepatitis G viruses and preliminary classification of genotypes

庚型肝炎病毒5'非编码区基因分析及基因型的初步划分

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20、

Bulk acoustic wave Barker code sequence and the application in ultrasonic NDT

体声波Barker码序列及其在检测超声中的应用

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